Home / 20,417.13-30,601.87-9,872.28

Finding the Fourth Proportional to 20,417.13, 30,601.87 and 9,872.28

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Solution

The fourth proportional to 20,417.13, 30,601.87 and 9,872.28 is: 14,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.13 : 30,601.87 = 9,872.28 : x
  2. Step 2: Convert to fraction form
    20,417.13/30,601.87 = 9,872.28/x
  3. Step 3: Cross multiply
    20,417.13x = 30,601.87 × 9,872.28
  4. Step 4: Simplify right side
    20,417.13x = 302,110,204.48
  5. Step 5: Solve for x
    x = 302,110,204.48/20,417.13
  6. Step 6: Final answer
    x = 14,796.90

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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.