Home / 22,118.77-30,523.60-12,687.13

Finding the Fourth Proportional to 22,118.77, 30,523.60 and 12,687.13

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Solution

The fourth proportional to 22,118.77, 30,523.60 and 12,687.13 is: 17,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.77 : 30,523.60 = 12,687.13 : x
  2. Step 2: Convert to fraction form
    22,118.77/30,523.60 = 12,687.13/x
  3. Step 3: Cross multiply
    22,118.77x = 30,523.60 × 12,687.13
  4. Step 4: Simplify right side
    22,118.77x = 387,256,881.27
  5. Step 5: Solve for x
    x = 387,256,881.27/22,118.77
  6. Step 6: Final answer
    x = 17,508.07

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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.