Home / 42,367.08-63,551.08-12,785.20

Finding the Fourth Proportional to 42,367.08, 63,551.08 and 12,785.20

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Solution

The fourth proportional to 42,367.08, 63,551.08 and 12,785.20 is: 19,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,367.08 : 63,551.08 = 12,785.20 : x
  2. Step 2: Convert to fraction form
    42,367.08/63,551.08 = 12,785.20/x
  3. Step 3: Cross multiply
    42,367.08x = 63,551.08 × 12,785.20
  4. Step 4: Simplify right side
    42,367.08x = 812,513,268.02
  5. Step 5: Solve for x
    x = 812,513,268.02/42,367.08
  6. Step 6: Final answer
    x = 19,177.94

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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.