Home / 20,529.56-28,330.81-11,098.13

Finding the Fourth Proportional to 20,529.56, 28,330.81 and 11,098.13

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Solution

The fourth proportional to 20,529.56, 28,330.81 and 11,098.13 is: 15,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.56 : 28,330.81 = 11,098.13 : x
  2. Step 2: Convert to fraction form
    20,529.56/28,330.81 = 11,098.13/x
  3. Step 3: Cross multiply
    20,529.56x = 28,330.81 × 11,098.13
  4. Step 4: Simplify right side
    20,529.56x = 314,418,842.99
  5. Step 5: Solve for x
    x = 314,418,842.99/20,529.56
  6. Step 6: Final answer
    x = 15,315.42

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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.