Home / 42,342.85-63,469.47-15,671.66

Finding the Fourth Proportional to 42,342.85, 63,469.47 and 15,671.66

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Solution

The fourth proportional to 42,342.85, 63,469.47 and 15,671.66 is: 23,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,342.85 : 63,469.47 = 15,671.66 : x
  2. Step 2: Convert to fraction form
    42,342.85/63,469.47 = 15,671.66/x
  3. Step 3: Cross multiply
    42,342.85x = 63,469.47 × 15,671.66
  4. Step 4: Simplify right side
    42,342.85x = 994,671,954.22
  5. Step 5: Solve for x
    x = 994,671,954.22/42,342.85
  6. Step 6: Final answer
    x = 23,490.91

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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.