Home / 28,050.72-38,714.20-17,990.52

Finding the Fourth Proportional to 28,050.72, 38,714.20 and 17,990.52

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Solution

The fourth proportional to 28,050.72, 38,714.20 and 17,990.52 is: 24,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.72 : 38,714.20 = 17,990.52 : x
  2. Step 2: Convert to fraction form
    28,050.72/38,714.20 = 17,990.52/x
  3. Step 3: Cross multiply
    28,050.72x = 38,714.20 × 17,990.52
  4. Step 4: Simplify right side
    28,050.72x = 696,488,589.38
  5. Step 5: Solve for x
    x = 696,488,589.38/28,050.72
  6. Step 6: Final answer
    x = 24,829.62

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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.