Home / 28,534.92-39,402.36-21,449.04

Finding the Fourth Proportional to 28,534.92, 39,402.36 and 21,449.04

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Solution

The fourth proportional to 28,534.92, 39,402.36 and 21,449.04 is: 29,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.92 : 39,402.36 = 21,449.04 : x
  2. Step 2: Convert to fraction form
    28,534.92/39,402.36 = 21,449.04/x
  3. Step 3: Cross multiply
    28,534.92x = 39,402.36 × 21,449.04
  4. Step 4: Simplify right side
    28,534.92x = 845,142,795.73
  5. Step 5: Solve for x
    x = 845,142,795.73/28,534.92
  6. Step 6: Final answer
    x = 29,617.84

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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.