Home / 21,818.28-32,735.52-11,422.74

Finding the Fourth Proportional to 21,818.28, 32,735.52 and 11,422.74

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Solution

The fourth proportional to 21,818.28, 32,735.52 and 11,422.74 is: 17,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,818.28 : 32,735.52 = 11,422.74 : x
  2. Step 2: Convert to fraction form
    21,818.28/32,735.52 = 11,422.74/x
  3. Step 3: Cross multiply
    21,818.28x = 32,735.52 × 11,422.74
  4. Step 4: Simplify right side
    21,818.28x = 373,929,333.72
  5. Step 5: Solve for x
    x = 373,929,333.72/21,818.28
  6. Step 6: Final answer
    x = 17,138.35

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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.