Home / 42,479.55-63,725.40-14,400.90

Finding the Fourth Proportional to 42,479.55, 63,725.40 and 14,400.90

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Solution

The fourth proportional to 42,479.55, 63,725.40 and 14,400.90 is: 21,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,479.55 : 63,725.40 = 14,400.90 : x
  2. Step 2: Convert to fraction form
    42,479.55/63,725.40 = 14,400.90/x
  3. Step 3: Cross multiply
    42,479.55x = 63,725.40 × 14,400.90
  4. Step 4: Simplify right side
    42,479.55x = 917,703,112.86
  5. Step 5: Solve for x
    x = 917,703,112.86/42,479.55
  6. Step 6: Final answer
    x = 21,603.41

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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.