Home / 21,937.02-30,265.21-12,500.11

Finding the Fourth Proportional to 21,937.02, 30,265.21 and 12,500.11

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Solution

The fourth proportional to 21,937.02, 30,265.21 and 12,500.11 is: 17,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.02 : 30,265.21 = 12,500.11 : x
  2. Step 2: Convert to fraction form
    21,937.02/30,265.21 = 12,500.11/x
  3. Step 3: Cross multiply
    21,937.02x = 30,265.21 × 12,500.11
  4. Step 4: Simplify right side
    21,937.02x = 378,318,454.17
  5. Step 5: Solve for x
    x = 378,318,454.17/21,937.02
  6. Step 6: Final answer
    x = 17,245.66

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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.