Home / 20,964.48-28,932.72-11,534.76

Finding the Fourth Proportional to 20,964.48, 28,932.72 and 11,534.76

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Solution

The fourth proportional to 20,964.48, 28,932.72 and 11,534.76 is: 15,918.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.48 : 28,932.72 = 11,534.76 : x
  2. Step 2: Convert to fraction form
    20,964.48/28,932.72 = 11,534.76/x
  3. Step 3: Cross multiply
    20,964.48x = 28,932.72 × 11,534.76
  4. Step 4: Simplify right side
    20,964.48x = 333,731,981.35
  5. Step 5: Solve for x
    x = 333,731,981.35/20,964.48
  6. Step 6: Final answer
    x = 15,918.92

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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.