Home / 42,004.85-63,005.18-15,707.66

Finding the Fourth Proportional to 42,004.85, 63,005.18 and 15,707.66

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Solution

The fourth proportional to 42,004.85, 63,005.18 and 15,707.66 is: 23,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,004.85 : 63,005.18 = 15,707.66 : x
  2. Step 2: Convert to fraction form
    42,004.85/63,005.18 = 15,707.66/x
  3. Step 3: Cross multiply
    42,004.85x = 63,005.18 × 15,707.66
  4. Step 4: Simplify right side
    42,004.85x = 989,663,552.11
  5. Step 5: Solve for x
    x = 989,663,552.11/42,004.85
  6. Step 6: Final answer
    x = 23,560.70

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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.