Home / 26,290.78-39,435.42-7,570.90

Finding the Fourth Proportional to 26,290.78, 39,435.42 and 7,570.90

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Solution

The fourth proportional to 26,290.78, 39,435.42 and 7,570.90 is: 11,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,290.78 : 39,435.42 = 7,570.90 : x
  2. Step 2: Convert to fraction form
    26,290.78/39,435.42 = 7,570.90/x
  3. Step 3: Cross multiply
    26,290.78x = 39,435.42 × 7,570.90
  4. Step 4: Simplify right side
    26,290.78x = 298,561,621.28
  5. Step 5: Solve for x
    x = 298,561,621.28/26,290.78
  6. Step 6: Final answer
    x = 11,356.13

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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.