Home / 42,312.60-63,448.38-12,724.92

Finding the Fourth Proportional to 42,312.60, 63,448.38 and 12,724.92

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Solution

The fourth proportional to 42,312.60, 63,448.38 and 12,724.92 is: 19,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,312.60 : 63,448.38 = 12,724.92 : x
  2. Step 2: Convert to fraction form
    42,312.60/63,448.38 = 12,724.92/x
  3. Step 3: Cross multiply
    42,312.60x = 63,448.38 × 12,724.92
  4. Step 4: Simplify right side
    42,312.60x = 807,375,559.63
  5. Step 5: Solve for x
    x = 807,375,559.63/42,312.60
  6. Step 6: Final answer
    x = 19,081.21

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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.