Home / 26,842.31-40,265.57-7,120.86

Finding the Fourth Proportional to 26,842.31, 40,265.57 and 7,120.86

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Solution

The fourth proportional to 26,842.31, 40,265.57 and 7,120.86 is: 10,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,842.31 : 40,265.57 = 7,120.86 : x
  2. Step 2: Convert to fraction form
    26,842.31/40,265.57 = 7,120.86/x
  3. Step 3: Cross multiply
    26,842.31x = 40,265.57 × 7,120.86
  4. Step 4: Simplify right side
    26,842.31x = 286,725,451.19
  5. Step 5: Solve for x
    x = 286,725,451.19/26,842.31
  6. Step 6: Final answer
    x = 10,681.85

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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.