Home / 15,099.14-20,839.20-14,434.76

Finding the Fourth Proportional to 15,099.14, 20,839.20 and 14,434.76

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Solution

The fourth proportional to 15,099.14, 20,839.20 and 14,434.76 is: 19,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,099.14 : 20,839.20 = 14,434.76 : x
  2. Step 2: Convert to fraction form
    15,099.14/20,839.20 = 14,434.76/x
  3. Step 3: Cross multiply
    15,099.14x = 20,839.20 × 14,434.76
  4. Step 4: Simplify right side
    15,099.14x = 300,808,850.59
  5. Step 5: Solve for x
    x = 300,808,850.59/15,099.14
  6. Step 6: Final answer
    x = 19,922.25

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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.