Home / 29,681.10-40,960.98-20,003.76

Finding the Fourth Proportional to 29,681.10, 40,960.98 and 20,003.76

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Solution

The fourth proportional to 29,681.10, 40,960.98 and 20,003.76 is: 27,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681.10 : 40,960.98 = 20,003.76 : x
  2. Step 2: Convert to fraction form
    29,681.10/40,960.98 = 20,003.76/x
  3. Step 3: Cross multiply
    29,681.10x = 40,960.98 × 20,003.76
  4. Step 4: Simplify right side
    29,681.10x = 819,373,613.28
  5. Step 5: Solve for x
    x = 819,373,613.28/29,681.10
  6. Step 6: Final answer
    x = 27,605.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.