Home / 25,815.24-38,728.80-8,045.06

Finding the Fourth Proportional to 25,815.24, 38,728.80 and 8,045.06

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Solution

The fourth proportional to 25,815.24, 38,728.80 and 8,045.06 is: 12,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.24 : 38,728.80 = 8,045.06 : x
  2. Step 2: Convert to fraction form
    25,815.24/38,728.80 = 8,045.06/x
  3. Step 3: Cross multiply
    25,815.24x = 38,728.80 × 8,045.06
  4. Step 4: Simplify right side
    25,815.24x = 311,575,326.08
  5. Step 5: Solve for x
    x = 311,575,326.08/25,815.24
  6. Step 6: Final answer
    x = 12,069.43

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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.