Home / 21,937.74-32,910.02-7,143.21

Finding the Fourth Proportional to 21,937.74, 32,910.02 and 7,143.21

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Solution

The fourth proportional to 21,937.74, 32,910.02 and 7,143.21 is: 10,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.74 : 32,910.02 = 7,143.21 : x
  2. Step 2: Convert to fraction form
    21,937.74/32,910.02 = 7,143.21/x
  3. Step 3: Cross multiply
    21,937.74x = 32,910.02 × 7,143.21
  4. Step 4: Simplify right side
    21,937.74x = 235,083,287.68
  5. Step 5: Solve for x
    x = 235,083,287.68/21,937.74
  6. Step 6: Final answer
    x = 10,715.93

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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.