Home / 26,338.60-39,499.80-7,620.40

Finding the Fourth Proportional to 26,338.60, 39,499.80 and 7,620.40

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Solution

The fourth proportional to 26,338.60, 39,499.80 and 7,620.40 is: 11,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,338.60 : 39,499.80 = 7,620.40 : x
  2. Step 2: Convert to fraction form
    26,338.60/39,499.80 = 7,620.40/x
  3. Step 3: Cross multiply
    26,338.60x = 39,499.80 × 7,620.40
  4. Step 4: Simplify right side
    26,338.60x = 301,004,275.92
  5. Step 5: Solve for x
    x = 301,004,275.92/26,338.60
  6. Step 6: Final answer
    x = 11,428.26

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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.