Home / 25,407.10-38,110.30-7,876.92

Finding the Fourth Proportional to 25,407.10, 38,110.30 and 7,876.92

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Solution

The fourth proportional to 25,407.10, 38,110.30 and 7,876.92 is: 11,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.10 : 38,110.30 = 7,876.92 : x
  2. Step 2: Convert to fraction form
    25,407.10/38,110.30 = 7,876.92/x
  3. Step 3: Cross multiply
    25,407.10x = 38,110.30 × 7,876.92
  4. Step 4: Simplify right side
    25,407.10x = 300,191,907.50
  5. Step 5: Solve for x
    x = 300,191,907.50/25,407.10
  6. Step 6: Final answer
    x = 11,815.28

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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.