Home / 28,819.55-39,764.23-17,488.78

Finding the Fourth Proportional to 28,819.55, 39,764.23 and 17,488.78

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Solution

The fourth proportional to 28,819.55, 39,764.23 and 17,488.78 is: 24,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.55 : 39,764.23 = 17,488.78 : x
  2. Step 2: Convert to fraction form
    28,819.55/39,764.23 = 17,488.78/x
  3. Step 3: Cross multiply
    28,819.55x = 39,764.23 × 17,488.78
  4. Step 4: Simplify right side
    28,819.55x = 695,427,727.21
  5. Step 5: Solve for x
    x = 695,427,727.21/28,819.55
  6. Step 6: Final answer
    x = 24,130.41

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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.