Home / 20,529.08-28,330.08-11,097.66

Finding the Fourth Proportional to 20,529.08, 28,330.08 and 11,097.66

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Solution

The fourth proportional to 20,529.08, 28,330.08 and 11,097.66 is: 15,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.08 : 28,330.08 = 11,097.66 : x
  2. Step 2: Convert to fraction form
    20,529.08/28,330.08 = 11,097.66/x
  3. Step 3: Cross multiply
    20,529.08x = 28,330.08 × 11,097.66
  4. Step 4: Simplify right side
    20,529.08x = 314,397,595.61
  5. Step 5: Solve for x
    x = 314,397,595.61/20,529.08
  6. Step 6: Final answer
    x = 15,314.74

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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.