Home / 42,368.01-63,553.66-12,785.85

Finding the Fourth Proportional to 42,368.01, 63,553.66 and 12,785.85

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Solution

The fourth proportional to 42,368.01, 63,553.66 and 12,785.85 is: 19,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.01 : 63,553.66 = 12,785.85 : x
  2. Step 2: Convert to fraction form
    42,368.01/63,553.66 = 12,785.85/x
  3. Step 3: Cross multiply
    42,368.01x = 63,553.66 × 12,785.85
  4. Step 4: Simplify right side
    42,368.01x = 812,587,563.71
  5. Step 5: Solve for x
    x = 812,587,563.71/42,368.01
  6. Step 6: Final answer
    x = 19,179.27

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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.