Home / 42,318.61-63,486.22-15,664.83

Finding the Fourth Proportional to 42,318.61, 63,486.22 and 15,664.83

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Solution

The fourth proportional to 42,318.61, 63,486.22 and 15,664.83 is: 23,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,318.61 : 63,486.22 = 15,664.83 : x
  2. Step 2: Convert to fraction form
    42,318.61/63,486.22 = 15,664.83/x
  3. Step 3: Cross multiply
    42,318.61x = 63,486.22 × 15,664.83
  4. Step 4: Simplify right side
    42,318.61x = 994,501,150.77
  5. Step 5: Solve for x
    x = 994,501,150.77/42,318.61
  6. Step 6: Final answer
    x = 23,500.33

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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.