Home / 25,011.66-34,515.90-13,681.11

Finding the Fourth Proportional to 25,011.66, 34,515.90 and 13,681.11

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Solution

The fourth proportional to 25,011.66, 34,515.90 and 13,681.11 is: 18,879.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.66 : 34,515.90 = 13,681.11 : x
  2. Step 2: Convert to fraction form
    25,011.66/34,515.90 = 13,681.11/x
  3. Step 3: Cross multiply
    25,011.66x = 34,515.90 × 13,681.11
  4. Step 4: Simplify right side
    25,011.66x = 472,215,824.65
  5. Step 5: Solve for x
    x = 472,215,824.65/25,011.66
  6. Step 6: Final answer
    x = 18,879.83

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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.