Home / 28,527.48-39,367.17-15,781.19

Finding the Fourth Proportional to 28,527.48, 39,367.17 and 15,781.19

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Solution

The fourth proportional to 28,527.48, 39,367.17 and 15,781.19 is: 21,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.48 : 39,367.17 = 15,781.19 : x
  2. Step 2: Convert to fraction form
    28,527.48/39,367.17 = 15,781.19/x
  3. Step 3: Cross multiply
    28,527.48x = 39,367.17 × 15,781.19
  4. Step 4: Simplify right side
    28,527.48x = 621,260,592.70
  5. Step 5: Solve for x
    x = 621,260,592.70/28,527.48
  6. Step 6: Final answer
    x = 21,777.62

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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.