Home / 26,496.20-39,729.90-10,915.40

Finding the Fourth Proportional to 26,496.20, 39,729.90 and 10,915.40

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Solution

The fourth proportional to 26,496.20, 39,729.90 and 10,915.40 is: 16,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,496.20 : 39,729.90 = 10,915.40 : x
  2. Step 2: Convert to fraction form
    26,496.20/39,729.90 = 10,915.40/x
  3. Step 3: Cross multiply
    26,496.20x = 39,729.90 × 10,915.40
  4. Step 4: Simplify right side
    26,496.20x = 433,667,750.46
  5. Step 5: Solve for x
    x = 433,667,750.46/26,496.20
  6. Step 6: Final answer
    x = 16,367.17

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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.