Home / 26,478.95-39,725.10-12,436.38

Finding the Fourth Proportional to 26,478.95, 39,725.10 and 12,436.38

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Solution

The fourth proportional to 26,478.95, 39,725.10 and 12,436.38 is: 18,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.95 : 39,725.10 = 12,436.38 : x
  2. Step 2: Convert to fraction form
    26,478.95/39,725.10 = 12,436.38/x
  3. Step 3: Cross multiply
    26,478.95x = 39,725.10 × 12,436.38
  4. Step 4: Simplify right side
    26,478.95x = 494,036,439.14
  5. Step 5: Solve for x
    x = 494,036,439.14/26,478.95
  6. Step 6: Final answer
    x = 18,657.71

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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.