Home / 20,311.17-27,967.10-17,779.11

Finding the Fourth Proportional to 20,311.17, 27,967.10 and 17,779.11

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Solution

The fourth proportional to 20,311.17, 27,967.10 and 17,779.11 is: 24,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.17 : 27,967.10 = 17,779.11 : x
  2. Step 2: Convert to fraction form
    20,311.17/27,967.10 = 17,779.11/x
  3. Step 3: Cross multiply
    20,311.17x = 27,967.10 × 17,779.11
  4. Step 4: Simplify right side
    20,311.17x = 497,230,147.28
  5. Step 5: Solve for x
    x = 497,230,147.28/20,311.17
  6. Step 6: Final answer
    x = 24,480.63

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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.