Home / 20,349.04-28,081.20-11,966.08

Finding the Fourth Proportional to 20,349.04, 28,081.20 and 11,966.08

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Solution

The fourth proportional to 20,349.04, 28,081.20 and 11,966.08 is: 16,512.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.04 : 28,081.20 = 11,966.08 : x
  2. Step 2: Convert to fraction form
    20,349.04/28,081.20 = 11,966.08/x
  3. Step 3: Cross multiply
    20,349.04x = 28,081.20 × 11,966.08
  4. Step 4: Simplify right side
    20,349.04x = 336,021,885.70
  5. Step 5: Solve for x
    x = 336,021,885.70/20,349.04
  6. Step 6: Final answer
    x = 16,512.91

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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.