Home / 26,358.40-39,489.60-12,476.80

Finding the Fourth Proportional to 26,358.40, 39,489.60 and 12,476.80

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Solution

The fourth proportional to 26,358.40, 39,489.60 and 12,476.80 is: 18,692.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,358.40 : 39,489.60 = 12,476.80 : x
  2. Step 2: Convert to fraction form
    26,358.40/39,489.60 = 12,476.80/x
  3. Step 3: Cross multiply
    26,358.40x = 39,489.60 × 12,476.80
  4. Step 4: Simplify right side
    26,358.40x = 492,703,841.28
  5. Step 5: Solve for x
    x = 492,703,841.28/26,358.40
  6. Step 6: Final answer
    x = 18,692.48

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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.