Home / 26,341.60-39,512.40-6,620.80

Finding the Fourth Proportional to 26,341.60, 39,512.40 and 6,620.80

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Solution

The fourth proportional to 26,341.60, 39,512.40 and 6,620.80 is: 9,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,341.60 : 39,512.40 = 6,620.80 : x
  2. Step 2: Convert to fraction form
    26,341.60/39,512.40 = 6,620.80/x
  3. Step 3: Cross multiply
    26,341.60x = 39,512.40 × 6,620.80
  4. Step 4: Simplify right side
    26,341.60x = 261,603,697.92
  5. Step 5: Solve for x
    x = 261,603,697.92/26,341.60
  6. Step 6: Final answer
    x = 9,931.20

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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.