Home / 15,831.38-23,748.68-5,978.94

Finding the Fourth Proportional to 15,831.38, 23,748.68 and 5,978.94

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Solution

The fourth proportional to 15,831.38, 23,748.68 and 5,978.94 is: 8,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.38 : 23,748.68 = 5,978.94 : x
  2. Step 2: Convert to fraction form
    15,831.38/23,748.68 = 5,978.94/x
  3. Step 3: Cross multiply
    15,831.38x = 23,748.68 × 5,978.94
  4. Step 4: Simplify right side
    15,831.38x = 141,991,932.80
  5. Step 5: Solve for x
    x = 141,991,932.80/15,831.38
  6. Step 6: Final answer
    x = 8,969.02

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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.