Home / 28,115.92-42,135-23,934.16

Finding the Fourth Proportional to 28,115.92, 42,135 and 23,934.16

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Solution

The fourth proportional to 28,115.92, 42,135 and 23,934.16 is: 35,868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.92 : 42,135 = 23,934.16 : x
  2. Step 2: Convert to fraction form
    28,115.92/42,135 = 23,934.16/x
  3. Step 3: Cross multiply
    28,115.92x = 42,135 × 23,934.16
  4. Step 4: Simplify right side
    28,115.92x = 1,008,465,831.60
  5. Step 5: Solve for x
    x = 1,008,465,831.60/28,115.92
  6. Step 6: Final answer
    x = 35,868.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.