Home / 31,199.47-43,076.05-18,456.74

Finding the Fourth Proportional to 31,199.47, 43,076.05 and 18,456.74

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Solution

The fourth proportional to 31,199.47, 43,076.05 and 18,456.74 is: 25,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,199.47 : 43,076.05 = 18,456.74 : x
  2. Step 2: Convert to fraction form
    31,199.47/43,076.05 = 18,456.74/x
  3. Step 3: Cross multiply
    31,199.47x = 43,076.05 × 18,456.74
  4. Step 4: Simplify right side
    31,199.47x = 795,043,355.09
  5. Step 5: Solve for x
    x = 795,043,355.09/31,199.47
  6. Step 6: Final answer
    x = 25,482.59

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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.