Home / 42,281.64-63,402-15,609.55

Finding the Fourth Proportional to 42,281.64, 63,402 and 15,609.55

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Solution

The fourth proportional to 42,281.64, 63,402 and 15,609.55 is: 23,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,281.64 : 63,402 = 15,609.55 : x
  2. Step 2: Convert to fraction form
    42,281.64/63,402 = 15,609.55/x
  3. Step 3: Cross multiply
    42,281.64x = 63,402 × 15,609.55
  4. Step 4: Simplify right side
    42,281.64x = 989,676,689.10
  5. Step 5: Solve for x
    x = 989,676,689.10/42,281.64
  6. Step 6: Final answer
    x = 23,406.77

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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.