Home / 28,225.68-38,951.64-15,650.52

Finding the Fourth Proportional to 28,225.68, 38,951.64 and 15,650.52

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Solution

The fourth proportional to 28,225.68, 38,951.64 and 15,650.52 is: 21,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.68 : 38,951.64 = 15,650.52 : x
  2. Step 2: Convert to fraction form
    28,225.68/38,951.64 = 15,650.52/x
  3. Step 3: Cross multiply
    28,225.68x = 38,951.64 × 15,650.52
  4. Step 4: Simplify right side
    28,225.68x = 609,613,420.85
  5. Step 5: Solve for x
    x = 609,613,420.85/28,225.68
  6. Step 6: Final answer
    x = 21,597.83

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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.