Home / 25,861.16-38,790.97-7,142.35

Finding the Fourth Proportional to 25,861.16, 38,790.97 and 7,142.35

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Solution

The fourth proportional to 25,861.16, 38,790.97 and 7,142.35 is: 10,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.16 : 38,790.97 = 7,142.35 : x
  2. Step 2: Convert to fraction form
    25,861.16/38,790.97 = 7,142.35/x
  3. Step 3: Cross multiply
    25,861.16x = 38,790.97 × 7,142.35
  4. Step 4: Simplify right side
    25,861.16x = 277,058,684.58
  5. Step 5: Solve for x
    x = 277,058,684.58/25,861.16
  6. Step 6: Final answer
    x = 10,713.31

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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.