Home / 22,720.02-31,352.87-12,648.14

Finding the Fourth Proportional to 22,720.02, 31,352.87 and 12,648.14

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Solution

The fourth proportional to 22,720.02, 31,352.87 and 12,648.14 is: 17,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.02 : 31,352.87 = 12,648.14 : x
  2. Step 2: Convert to fraction form
    22,720.02/31,352.87 = 12,648.14/x
  3. Step 3: Cross multiply
    22,720.02x = 31,352.87 × 12,648.14
  4. Step 4: Simplify right side
    22,720.02x = 396,555,489.16
  5. Step 5: Solve for x
    x = 396,555,489.16/22,720.02
  6. Step 6: Final answer
    x = 17,454.01

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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.