Home / 25,528.72-38,293.08-7,999.90

Finding the Fourth Proportional to 25,528.72, 38,293.08 and 7,999.90

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Solution

The fourth proportional to 25,528.72, 38,293.08 and 7,999.90 is: 11,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,528.72 : 38,293.08 = 7,999.90 : x
  2. Step 2: Convert to fraction form
    25,528.72/38,293.08 = 7,999.90/x
  3. Step 3: Cross multiply
    25,528.72x = 38,293.08 × 7,999.90
  4. Step 4: Simplify right side
    25,528.72x = 306,340,810.69
  5. Step 5: Solve for x
    x = 306,340,810.69/25,528.72
  6. Step 6: Final answer
    x = 11,999.85

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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.