Home / 42,470.96-63,702.76-14,390.42

Finding the Fourth Proportional to 42,470.96, 63,702.76 and 14,390.42

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Solution

The fourth proportional to 42,470.96, 63,702.76 and 14,390.42 is: 21,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,470.96 : 63,702.76 = 14,390.42 : x
  2. Step 2: Convert to fraction form
    42,470.96/63,702.76 = 14,390.42/x
  3. Step 3: Cross multiply
    42,470.96x = 63,702.76 × 14,390.42
  4. Step 4: Simplify right side
    42,470.96x = 916,709,471.56
  5. Step 5: Solve for x
    x = 916,709,471.56/42,470.96
  6. Step 6: Final answer
    x = 21,584.38

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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.