Home / 26,305.60-39,439.20-10,715.20

Finding the Fourth Proportional to 26,305.60, 39,439.20 and 10,715.20

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Solution

The fourth proportional to 26,305.60, 39,439.20 and 10,715.20 is: 16,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,305.60 : 39,439.20 = 10,715.20 : x
  2. Step 2: Convert to fraction form
    26,305.60/39,439.20 = 10,715.20/x
  3. Step 3: Cross multiply
    26,305.60x = 39,439.20 × 10,715.20
  4. Step 4: Simplify right side
    26,305.60x = 422,598,915.84
  5. Step 5: Solve for x
    x = 422,598,915.84/26,305.60
  6. Step 6: Final answer
    x = 16,064.98

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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.