Home / 20,566.03-28,381.13-11,134.59

Finding the Fourth Proportional to 20,566.03, 28,381.13 and 11,134.59

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Solution

The fourth proportional to 20,566.03, 28,381.13 and 11,134.59 is: 15,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.03 : 28,381.13 = 11,134.59 : x
  2. Step 2: Convert to fraction form
    20,566.03/28,381.13 = 11,134.59/x
  3. Step 3: Cross multiply
    20,566.03x = 28,381.13 × 11,134.59
  4. Step 4: Simplify right side
    20,566.03x = 316,012,246.29
  5. Step 5: Solve for x
    x = 316,012,246.29/20,566.03
  6. Step 6: Final answer
    x = 15,365.74

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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.