Home / 28,244.68-38,976.35-15,497.54

Finding the Fourth Proportional to 28,244.68, 38,976.35 and 15,497.54

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Solution

The fourth proportional to 28,244.68, 38,976.35 and 15,497.54 is: 21,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.68 : 38,976.35 = 15,497.54 : x
  2. Step 2: Convert to fraction form
    28,244.68/38,976.35 = 15,497.54/x
  3. Step 3: Cross multiply
    28,244.68x = 38,976.35 × 15,497.54
  4. Step 4: Simplify right side
    28,244.68x = 604,037,572.53
  5. Step 5: Solve for x
    x = 604,037,572.53/28,244.68
  6. Step 6: Final answer
    x = 21,385.89

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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.