Home / 20,262.53-27,959.50-11,309.20

Finding the Fourth Proportional to 20,262.53, 27,959.50 and 11,309.20

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Solution

The fourth proportional to 20,262.53, 27,959.50 and 11,309.20 is: 15,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.53 : 27,959.50 = 11,309.20 : x
  2. Step 2: Convert to fraction form
    20,262.53/27,959.50 = 11,309.20/x
  3. Step 3: Cross multiply
    20,262.53x = 27,959.50 × 11,309.20
  4. Step 4: Simplify right side
    20,262.53x = 316,199,577.40
  5. Step 5: Solve for x
    x = 316,199,577.40/20,262.53
  6. Step 6: Final answer
    x = 15,605.14

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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.