Home / 22,740.57-34,134.13-18,779.21

Finding the Fourth Proportional to 22,740.57, 34,134.13 and 18,779.21

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Solution

The fourth proportional to 22,740.57, 34,134.13 and 18,779.21 is: 28,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.57 : 34,134.13 = 18,779.21 : x
  2. Step 2: Convert to fraction form
    22,740.57/34,134.13 = 18,779.21/x
  3. Step 3: Cross multiply
    22,740.57x = 34,134.13 × 18,779.21
  4. Step 4: Simplify right side
    22,740.57x = 641,011,995.44
  5. Step 5: Solve for x
    x = 641,011,995.44/22,740.57
  6. Step 6: Final answer
    x = 28,188.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.