Home / 22,708.62-31,364.19-15,142.50

Finding the Fourth Proportional to 22,708.62, 31,364.19 and 15,142.50

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Solution

The fourth proportional to 22,708.62, 31,364.19 and 15,142.50 is: 20,914.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.62 : 31,364.19 = 15,142.50 : x
  2. Step 2: Convert to fraction form
    22,708.62/31,364.19 = 15,142.50/x
  3. Step 3: Cross multiply
    22,708.62x = 31,364.19 × 15,142.50
  4. Step 4: Simplify right side
    22,708.62x = 474,932,247.08
  5. Step 5: Solve for x
    x = 474,932,247.08/22,708.62
  6. Step 6: Final answer
    x = 20,914.18

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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.