Home / 22,554.80-31,125.16-12,482.65

Finding the Fourth Proportional to 22,554.80, 31,125.16 and 12,482.65

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Solution

The fourth proportional to 22,554.80, 31,125.16 and 12,482.65 is: 17,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,554.80 : 31,125.16 = 12,482.65 : x
  2. Step 2: Convert to fraction form
    22,554.80/31,125.16 = 12,482.65/x
  3. Step 3: Cross multiply
    22,554.80x = 31,125.16 × 12,482.65
  4. Step 4: Simplify right side
    22,554.80x = 388,524,478.47
  5. Step 5: Solve for x
    x = 388,524,478.47/22,554.80
  6. Step 6: Final answer
    x = 17,225.80

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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.