Home / 26,988.30-40,470.30-10,342.80

Finding the Fourth Proportional to 26,988.30, 40,470.30 and 10,342.80

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Solution

The fourth proportional to 26,988.30, 40,470.30 and 10,342.80 is: 15,509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.30 : 40,470.30 = 10,342.80 : x
  2. Step 2: Convert to fraction form
    26,988.30/40,470.30 = 10,342.80/x
  3. Step 3: Cross multiply
    26,988.30x = 40,470.30 × 10,342.80
  4. Step 4: Simplify right side
    26,988.30x = 418,576,218.84
  5. Step 5: Solve for x
    x = 418,576,218.84/26,988.30
  6. Step 6: Final answer
    x = 15,509.54

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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.