Home / 42,005.85-63,006.67-15,708.66

Finding the Fourth Proportional to 42,005.85, 63,006.67 and 15,708.66

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Solution

The fourth proportional to 42,005.85, 63,006.67 and 15,708.66 is: 23,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.85 : 63,006.67 = 15,708.66 : x
  2. Step 2: Convert to fraction form
    42,005.85/63,006.67 = 15,708.66/x
  3. Step 3: Cross multiply
    42,005.85x = 63,006.67 × 15,708.66
  4. Step 4: Simplify right side
    42,005.85x = 989,750,356.76
  5. Step 5: Solve for x
    x = 989,750,356.76/42,005.85
  6. Step 6: Final answer
    x = 23,562.20

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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.