Home / 25,020.16-34,488.12-19,706.56

Finding the Fourth Proportional to 25,020.16, 34,488.12 and 19,706.56

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Solution

The fourth proportional to 25,020.16, 34,488.12 and 19,706.56 is: 27,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,020.16 : 34,488.12 = 19,706.56 : x
  2. Step 2: Convert to fraction form
    25,020.16/34,488.12 = 19,706.56/x
  3. Step 3: Cross multiply
    25,020.16x = 34,488.12 × 19,706.56
  4. Step 4: Simplify right side
    25,020.16x = 679,642,206.07
  5. Step 5: Solve for x
    x = 679,642,206.07/25,020.16
  6. Step 6: Final answer
    x = 27,163.78

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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.