Home / 22,125.80-30,537.78-12,700.52

Finding the Fourth Proportional to 22,125.80, 30,537.78 and 12,700.52

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Solution

The fourth proportional to 22,125.80, 30,537.78 and 12,700.52 is: 17,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,125.80 : 30,537.78 = 12,700.52 : x
  2. Step 2: Convert to fraction form
    22,125.80/30,537.78 = 12,700.52/x
  3. Step 3: Cross multiply
    22,125.80x = 30,537.78 × 12,700.52
  4. Step 4: Simplify right side
    22,125.80x = 387,845,685.65
  5. Step 5: Solve for x
    x = 387,845,685.65/22,125.80
  6. Step 6: Final answer
    x = 17,529.11

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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.