Home / 26,931.30-40,391.70-10,287.36

Finding the Fourth Proportional to 26,931.30, 40,391.70 and 10,287.36

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Solution

The fourth proportional to 26,931.30, 40,391.70 and 10,287.36 is: 15,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.30 : 40,391.70 = 10,287.36 : x
  2. Step 2: Convert to fraction form
    26,931.30/40,391.70 = 10,287.36/x
  3. Step 3: Cross multiply
    26,931.30x = 40,391.70 × 10,287.36
  4. Step 4: Simplify right side
    26,931.30x = 415,523,958.91
  5. Step 5: Solve for x
    x = 415,523,958.91/26,931.30
  6. Step 6: Final answer
    x = 15,429.03

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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.