Home / 20,113.40-30,129.84-9,593.66

Finding the Fourth Proportional to 20,113.40, 30,129.84 and 9,593.66

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Solution

The fourth proportional to 20,113.40, 30,129.84 and 9,593.66 is: 14,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.40 : 30,129.84 = 9,593.66 : x
  2. Step 2: Convert to fraction form
    20,113.40/30,129.84 = 9,593.66/x
  3. Step 3: Cross multiply
    20,113.40x = 30,129.84 × 9,593.66
  4. Step 4: Simplify right side
    20,113.40x = 289,055,440.81
  5. Step 5: Solve for x
    x = 289,055,440.81/20,113.40
  6. Step 6: Final answer
    x = 14,371.29

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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.