Home / 21,781.04-30,074.76-16,737.30

Finding the Fourth Proportional to 21,781.04, 30,074.76 and 16,737.30

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Solution

The fourth proportional to 21,781.04, 30,074.76 and 16,737.30 is: 23,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.04 : 30,074.76 = 16,737.30 : x
  2. Step 2: Convert to fraction form
    21,781.04/30,074.76 = 16,737.30/x
  3. Step 3: Cross multiply
    21,781.04x = 30,074.76 × 16,737.30
  4. Step 4: Simplify right side
    21,781.04x = 503,370,280.55
  5. Step 5: Solve for x
    x = 503,370,280.55/21,781.04
  6. Step 6: Final answer
    x = 23,110.48

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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.