Home / 42,351.96-63,528.04-12,778.28

Finding the Fourth Proportional to 42,351.96, 63,528.04 and 12,778.28

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Solution

The fourth proportional to 42,351.96, 63,528.04 and 12,778.28 is: 19,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,351.96 : 63,528.04 = 12,778.28 : x
  2. Step 2: Convert to fraction form
    42,351.96/63,528.04 = 12,778.28/x
  3. Step 3: Cross multiply
    42,351.96x = 63,528.04 × 12,778.28
  4. Step 4: Simplify right side
    42,351.96x = 811,779,082.97
  5. Step 5: Solve for x
    x = 811,779,082.97/42,351.96
  6. Step 6: Final answer
    x = 19,167.45

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1.5x scale

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.