Home / 40,931.60-61,397.40-14,637.20

Finding the Fourth Proportional to 40,931.60, 61,397.40 and 14,637.20

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Solution

The fourth proportional to 40,931.60, 61,397.40 and 14,637.20 is: 21,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,931.60 : 61,397.40 = 14,637.20 : x
  2. Step 2: Convert to fraction form
    40,931.60/61,397.40 = 14,637.20/x
  3. Step 3: Cross multiply
    40,931.60x = 61,397.40 × 14,637.20
  4. Step 4: Simplify right side
    40,931.60x = 898,686,023.28
  5. Step 5: Solve for x
    x = 898,686,023.28/40,931.60
  6. Step 6: Final answer
    x = 21,955.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.