Home / 21,941.76-32,915.20-13,734.40

Finding the Fourth Proportional to 21,941.76, 32,915.20 and 13,734.40

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Solution

The fourth proportional to 21,941.76, 32,915.20 and 13,734.40 is: 20,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.76 : 32,915.20 = 13,734.40 : x
  2. Step 2: Convert to fraction form
    21,941.76/32,915.20 = 13,734.40/x
  3. Step 3: Cross multiply
    21,941.76x = 32,915.20 × 13,734.40
  4. Step 4: Simplify right side
    21,941.76x = 452,070,522.88
  5. Step 5: Solve for x
    x = 452,070,522.88/21,941.76
  6. Step 6: Final answer
    x = 20,603.20

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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.