Home / 20,593.04-28,417.38-11,638.79

Finding the Fourth Proportional to 20,593.04, 28,417.38 and 11,638.79

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Solution

The fourth proportional to 20,593.04, 28,417.38 and 11,638.79 is: 16,060.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.04 : 28,417.38 = 11,638.79 : x
  2. Step 2: Convert to fraction form
    20,593.04/28,417.38 = 11,638.79/x
  3. Step 3: Cross multiply
    20,593.04x = 28,417.38 × 11,638.79
  4. Step 4: Simplify right side
    20,593.04x = 330,743,904.47
  5. Step 5: Solve for x
    x = 330,743,904.47/20,593.04
  6. Step 6: Final answer
    x = 16,060.96

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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.