Home / 20,236.20-27,895.50-15,752.04

Finding the Fourth Proportional to 20,236.20, 27,895.50 and 15,752.04

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Solution

The fourth proportional to 20,236.20, 27,895.50 and 15,752.04 is: 21,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.20 : 27,895.50 = 15,752.04 : x
  2. Step 2: Convert to fraction form
    20,236.20/27,895.50 = 15,752.04/x
  3. Step 3: Cross multiply
    20,236.20x = 27,895.50 × 15,752.04
  4. Step 4: Simplify right side
    20,236.20x = 439,411,031.82
  5. Step 5: Solve for x
    x = 439,411,031.82/20,236.20
  6. Step 6: Final answer
    x = 21,714.11

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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.