Home / 26,280.40-39,420.60-25,259.80

Finding the Fourth Proportional to 26,280.40, 39,420.60 and 25,259.80

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Solution

The fourth proportional to 26,280.40, 39,420.60 and 25,259.80 is: 37,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,280.40 : 39,420.60 = 25,259.80 : x
  2. Step 2: Convert to fraction form
    26,280.40/39,420.60 = 25,259.80/x
  3. Step 3: Cross multiply
    26,280.40x = 39,420.60 × 25,259.80
  4. Step 4: Simplify right side
    26,280.40x = 995,756,471.88
  5. Step 5: Solve for x
    x = 995,756,471.88/26,280.40
  6. Step 6: Final answer
    x = 37,889.70

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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.