Home / 42,462.30-63,693.45-12,878.70

Finding the Fourth Proportional to 42,462.30, 63,693.45 and 12,878.70

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Solution

The fourth proportional to 42,462.30, 63,693.45 and 12,878.70 is: 19,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,462.30 : 63,693.45 = 12,878.70 : x
  2. Step 2: Convert to fraction form
    42,462.30/63,693.45 = 12,878.70/x
  3. Step 3: Cross multiply
    42,462.30x = 63,693.45 × 12,878.70
  4. Step 4: Simplify right side
    42,462.30x = 820,288,834.52
  5. Step 5: Solve for x
    x = 820,288,834.52/42,462.30
  6. Step 6: Final answer
    x = 19,318.05

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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.