Home / 28,398.33-39,191.45-15,823.08

Finding the Fourth Proportional to 28,398.33, 39,191.45 and 15,823.08

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Solution

The fourth proportional to 28,398.33, 39,191.45 and 15,823.08 is: 21,836.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.33 : 39,191.45 = 15,823.08 : x
  2. Step 2: Convert to fraction form
    28,398.33/39,191.45 = 15,823.08/x
  3. Step 3: Cross multiply
    28,398.33x = 39,191.45 × 15,823.08
  4. Step 4: Simplify right side
    28,398.33x = 620,129,369.55
  5. Step 5: Solve for x
    x = 620,129,369.55/28,398.33
  6. Step 6: Final answer
    x = 21,836.83

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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.