Home / 21,476.52-29,638.35-12,522.60

Finding the Fourth Proportional to 21,476.52, 29,638.35 and 12,522.60

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Solution

The fourth proportional to 21,476.52, 29,638.35 and 12,522.60 is: 17,281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.52 : 29,638.35 = 12,522.60 : x
  2. Step 2: Convert to fraction form
    21,476.52/29,638.35 = 12,522.60/x
  3. Step 3: Cross multiply
    21,476.52x = 29,638.35 × 12,522.60
  4. Step 4: Simplify right side
    21,476.52x = 371,149,201.71
  5. Step 5: Solve for x
    x = 371,149,201.71/21,476.52
  6. Step 6: Final answer
    x = 17,281.63

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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.