Home / 22,689.36-31,311.28-12,617.48

Finding the Fourth Proportional to 22,689.36, 31,311.28 and 12,617.48

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Solution

The fourth proportional to 22,689.36, 31,311.28 and 12,617.48 is: 17,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.36 : 31,311.28 = 12,617.48 : x
  2. Step 2: Convert to fraction form
    22,689.36/31,311.28 = 12,617.48/x
  3. Step 3: Cross multiply
    22,689.36x = 31,311.28 × 12,617.48
  4. Step 4: Simplify right side
    22,689.36x = 395,069,449.17
  5. Step 5: Solve for x
    x = 395,069,449.17/22,689.36
  6. Step 6: Final answer
    x = 17,412.10

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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.