Home / 28,468.72-39,254.88-18,383.92

Finding the Fourth Proportional to 28,468.72, 39,254.88 and 18,383.92

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Solution

The fourth proportional to 28,468.72, 39,254.88 and 18,383.92 is: 25,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.72 : 39,254.88 = 18,383.92 : x
  2. Step 2: Convert to fraction form
    28,468.72/39,254.88 = 18,383.92/x
  3. Step 3: Cross multiply
    28,468.72x = 39,254.88 × 18,383.92
  4. Step 4: Simplify right side
    28,468.72x = 721,658,573.53
  5. Step 5: Solve for x
    x = 721,658,573.53/28,468.72
  6. Step 6: Final answer
    x = 25,349.18

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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.