Home / 25,947.95-38,921.91-8,417.78

Finding the Fourth Proportional to 25,947.95, 38,921.91 and 8,417.78

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Solution

The fourth proportional to 25,947.95, 38,921.91 and 8,417.78 is: 12,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.95 : 38,921.91 = 8,417.78 : x
  2. Step 2: Convert to fraction form
    25,947.95/38,921.91 = 8,417.78/x
  3. Step 3: Cross multiply
    25,947.95x = 38,921.91 × 8,417.78
  4. Step 4: Simplify right side
    25,947.95x = 327,635,880.95
  5. Step 5: Solve for x
    x = 327,635,880.95/25,947.95
  6. Step 6: Final answer
    x = 12,626.66

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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.