Home / 30,432.74-41,995.86-19,108.10

Finding the Fourth Proportional to 30,432.74, 41,995.86 and 19,108.10

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Solution

The fourth proportional to 30,432.74, 41,995.86 and 19,108.10 is: 26,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.74 : 41,995.86 = 19,108.10 : x
  2. Step 2: Convert to fraction form
    30,432.74/41,995.86 = 19,108.10/x
  3. Step 3: Cross multiply
    30,432.74x = 41,995.86 × 19,108.10
  4. Step 4: Simplify right side
    30,432.74x = 802,461,092.47
  5. Step 5: Solve for x
    x = 802,461,092.47/30,432.74
  6. Step 6: Final answer
    x = 26,368.35

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Half scale
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Double scale
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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.