Home / 28,032.04-38,684.28-15,456.88

Finding the Fourth Proportional to 28,032.04, 38,684.28 and 15,456.88

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Solution

The fourth proportional to 28,032.04, 38,684.28 and 15,456.88 is: 21,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.04 : 38,684.28 = 15,456.88 : x
  2. Step 2: Convert to fraction form
    28,032.04/38,684.28 = 15,456.88/x
  3. Step 3: Cross multiply
    28,032.04x = 38,684.28 × 15,456.88
  4. Step 4: Simplify right side
    28,032.04x = 597,938,273.85
  5. Step 5: Solve for x
    x = 597,938,273.85/28,032.04
  6. Step 6: Final answer
    x = 21,330.53

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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.