Home / 42,856.62-64,284.92-19,489.74

Finding the Fourth Proportional to 42,856.62, 64,284.92 and 19,489.74

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Solution

The fourth proportional to 42,856.62, 64,284.92 and 19,489.74 is: 29,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,856.62 : 64,284.92 = 19,489.74 : x
  2. Step 2: Convert to fraction form
    42,856.62/64,284.92 = 19,489.74/x
  3. Step 3: Cross multiply
    42,856.62x = 64,284.92 × 19,489.74
  4. Step 4: Simplify right side
    42,856.62x = 1,252,896,376.72
  5. Step 5: Solve for x
    x = 1,252,896,376.72/42,856.62
  6. Step 6: Final answer
    x = 29,234.61

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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.