Home / 23,078.98-31,853.55-13,519.90

Finding the Fourth Proportional to 23,078.98, 31,853.55 and 13,519.90

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Solution

The fourth proportional to 23,078.98, 31,853.55 and 13,519.90 is: 18,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,078.98 : 31,853.55 = 13,519.90 : x
  2. Step 2: Convert to fraction form
    23,078.98/31,853.55 = 13,519.90/x
  3. Step 3: Cross multiply
    23,078.98x = 31,853.55 × 13,519.90
  4. Step 4: Simplify right side
    23,078.98x = 430,656,810.65
  5. Step 5: Solve for x
    x = 430,656,810.65/23,078.98
  6. Step 6: Final answer
    x = 18,660.13

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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.