Home / 20,239.02-27,934.30-13,153.14

Finding the Fourth Proportional to 20,239.02, 27,934.30 and 13,153.14

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Solution

The fourth proportional to 20,239.02, 27,934.30 and 13,153.14 is: 18,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.02 : 27,934.30 = 13,153.14 : x
  2. Step 2: Convert to fraction form
    20,239.02/27,934.30 = 13,153.14/x
  3. Step 3: Cross multiply
    20,239.02x = 27,934.30 × 13,153.14
  4. Step 4: Simplify right side
    20,239.02x = 367,423,758.70
  5. Step 5: Solve for x
    x = 367,423,758.70/20,239.02
  6. Step 6: Final answer
    x = 18,154.23

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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.