Home / 20,444.13-28,211.63-11,491.52

Finding the Fourth Proportional to 20,444.13, 28,211.63 and 11,491.52

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Solution

The fourth proportional to 20,444.13, 28,211.63 and 11,491.52 is: 15,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.13 : 28,211.63 = 11,491.52 : x
  2. Step 2: Convert to fraction form
    20,444.13/28,211.63 = 11,491.52/x
  3. Step 3: Cross multiply
    20,444.13x = 28,211.63 × 11,491.52
  4. Step 4: Simplify right side
    20,444.13x = 324,194,311.86
  5. Step 5: Solve for x
    x = 324,194,311.86/20,444.13
  6. Step 6: Final answer
    x = 15,857.57

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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.