Home / 42,156.39-63,226.46-19,660.86

Finding the Fourth Proportional to 42,156.39, 63,226.46 and 19,660.86

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Solution

The fourth proportional to 42,156.39, 63,226.46 and 19,660.86 is: 29,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,156.39 : 63,226.46 = 19,660.86 : x
  2. Step 2: Convert to fraction form
    42,156.39/63,226.46 = 19,660.86/x
  3. Step 3: Cross multiply
    42,156.39x = 63,226.46 × 19,660.86
  4. Step 4: Simplify right side
    42,156.39x = 1,243,086,578.36
  5. Step 5: Solve for x
    x = 1,243,086,578.36/42,156.39
  6. Step 6: Final answer
    x = 29,487.50

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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.