Home / 22,117.77-30,522.22-12,686.13

Finding the Fourth Proportional to 22,117.77, 30,522.22 and 12,686.13

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Solution

The fourth proportional to 22,117.77, 30,522.22 and 12,686.13 is: 17,506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.77 : 30,522.22 = 12,686.13 : x
  2. Step 2: Convert to fraction form
    22,117.77/30,522.22 = 12,686.13/x
  3. Step 3: Cross multiply
    22,117.77x = 30,522.22 × 12,686.13
  4. Step 4: Simplify right side
    22,117.77x = 387,208,819.09
  5. Step 5: Solve for x
    x = 387,208,819.09/22,117.77
  6. Step 6: Final answer
    x = 17,506.68

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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.