Home / 25,815.09-38,726.24-8,290.29

Finding the Fourth Proportional to 25,815.09, 38,726.24 and 8,290.29

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Solution

The fourth proportional to 25,815.09, 38,726.24 and 8,290.29 is: 12,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.09 : 38,726.24 = 8,290.29 : x
  2. Step 2: Convert to fraction form
    25,815.09/38,726.24 = 8,290.29/x
  3. Step 3: Cross multiply
    25,815.09x = 38,726.24 × 8,290.29
  4. Step 4: Simplify right side
    25,815.09x = 321,051,718.76
  5. Step 5: Solve for x
    x = 321,051,718.76/25,815.09
  6. Step 6: Final answer
    x = 12,436.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.