Home / 28,892.81-39,871.31-16,146.10

Finding the Fourth Proportional to 28,892.81, 39,871.31 and 16,146.10

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Solution

The fourth proportional to 28,892.81, 39,871.31 and 16,146.10 is: 22,281.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.81 : 39,871.31 = 16,146.10 : x
  2. Step 2: Convert to fraction form
    28,892.81/39,871.31 = 16,146.10/x
  3. Step 3: Cross multiply
    28,892.81x = 39,871.31 × 16,146.10
  4. Step 4: Simplify right side
    28,892.81x = 643,766,099.08
  5. Step 5: Solve for x
    x = 643,766,099.08/28,892.81
  6. Step 6: Final answer
    x = 22,281.18

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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.