Home / 22,680.81-31,258.86-18,445.92

Finding the Fourth Proportional to 22,680.81, 31,258.86 and 18,445.92

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Solution

The fourth proportional to 22,680.81, 31,258.86 and 18,445.92 is: 25,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,680.81 : 31,258.86 = 18,445.92 : x
  2. Step 2: Convert to fraction form
    22,680.81/31,258.86 = 18,445.92/x
  3. Step 3: Cross multiply
    22,680.81x = 31,258.86 × 18,445.92
  4. Step 4: Simplify right side
    22,680.81x = 576,598,430.85
  5. Step 5: Solve for x
    x = 576,598,430.85/22,680.81
  6. Step 6: Final answer
    x = 25,422.30

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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.