Home / 15,920.25-23,712.20-15,087.57

Finding the Fourth Proportional to 15,920.25, 23,712.20 and 15,087.57

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Solution

The fourth proportional to 15,920.25, 23,712.20 and 15,087.57 is: 22,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.25 : 23,712.20 = 15,087.57 : x
  2. Step 2: Convert to fraction form
    15,920.25/23,712.20 = 15,087.57/x
  3. Step 3: Cross multiply
    15,920.25x = 23,712.20 × 15,087.57
  4. Step 4: Simplify right side
    15,920.25x = 357,759,515.07
  5. Step 5: Solve for x
    x = 357,759,515.07/15,920.25
  6. Step 6: Final answer
    x = 22,471.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.