Home / 22,622.43-31,218.03-12,551.31

Finding the Fourth Proportional to 22,622.43, 31,218.03 and 12,551.31

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Solution

The fourth proportional to 22,622.43, 31,218.03 and 12,551.31 is: 17,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.43 : 31,218.03 = 12,551.31 : x
  2. Step 2: Convert to fraction form
    22,622.43/31,218.03 = 12,551.31/x
  3. Step 3: Cross multiply
    22,622.43x = 31,218.03 × 12,551.31
  4. Step 4: Simplify right side
    22,622.43x = 391,827,172.12
  5. Step 5: Solve for x
    x = 391,827,172.12/22,622.43
  6. Step 6: Final answer
    x = 17,320.30

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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.