Home / 31,875.96-43,989.84-19,124.76

Finding the Fourth Proportional to 31,875.96, 43,989.84 and 19,124.76

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Solution

The fourth proportional to 31,875.96, 43,989.84 and 19,124.76 is: 26,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875.96 : 43,989.84 = 19,124.76 : x
  2. Step 2: Convert to fraction form
    31,875.96/43,989.84 = 19,124.76/x
  3. Step 3: Cross multiply
    31,875.96x = 43,989.84 × 19,124.76
  4. Step 4: Simplify right side
    31,875.96x = 841,295,132.44
  5. Step 5: Solve for x
    x = 841,295,132.44/31,875.96
  6. Step 6: Final answer
    x = 26,392.78

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.