Home / 22,354.40-30,847.56-12,921.68

Finding the Fourth Proportional to 22,354.40, 30,847.56 and 12,921.68

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Solution

The fourth proportional to 22,354.40, 30,847.56 and 12,921.68 is: 17,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,354.40 : 30,847.56 = 12,921.68 : x
  2. Step 2: Convert to fraction form
    22,354.40/30,847.56 = 12,921.68/x
  3. Step 3: Cross multiply
    22,354.40x = 30,847.56 × 12,921.68
  4. Step 4: Simplify right side
    22,354.40x = 398,602,299.10
  5. Step 5: Solve for x
    x = 398,602,299.10/22,354.40
  6. Step 6: Final answer
    x = 17,831.04

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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.