Home / 28,039.17-38,693.90-15,292.11

Finding the Fourth Proportional to 28,039.17, 38,693.90 and 15,292.11

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Solution

The fourth proportional to 28,039.17, 38,693.90 and 15,292.11 is: 21,103.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.17 : 38,693.90 = 15,292.11 : x
  2. Step 2: Convert to fraction form
    28,039.17/38,693.90 = 15,292.11/x
  3. Step 3: Cross multiply
    28,039.17x = 38,693.90 × 15,292.11
  4. Step 4: Simplify right side
    28,039.17x = 591,711,413.36
  5. Step 5: Solve for x
    x = 591,711,413.36/28,039.17
  6. Step 6: Final answer
    x = 21,103.03

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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.