Home / 22,117.14-30,520.26-12,555.90

Finding the Fourth Proportional to 22,117.14, 30,520.26 and 12,555.90

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Solution

The fourth proportional to 22,117.14, 30,520.26 and 12,555.90 is: 17,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.14 : 30,520.26 = 12,555.90 : x
  2. Step 2: Convert to fraction form
    22,117.14/30,520.26 = 12,555.90/x
  3. Step 3: Cross multiply
    22,117.14x = 30,520.26 × 12,555.90
  4. Step 4: Simplify right side
    22,117.14x = 383,209,332.53
  5. Step 5: Solve for x
    x = 383,209,332.53/22,117.14
  6. Step 6: Final answer
    x = 17,326.35

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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.