Home / 31,274.13-43,178.40-27,911.19

Finding the Fourth Proportional to 31,274.13, 43,178.40 and 27,911.19

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Solution

The fourth proportional to 31,274.13, 43,178.40 and 27,911.19 is: 38,535.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,274.13 : 43,178.40 = 27,911.19 : x
  2. Step 2: Convert to fraction form
    31,274.13/43,178.40 = 27,911.19/x
  3. Step 3: Cross multiply
    31,274.13x = 43,178.40 × 27,911.19
  4. Step 4: Simplify right side
    31,274.13x = 1,205,160,526.30
  5. Step 5: Solve for x
    x = 1,205,160,526.30/31,274.13
  6. Step 6: Final answer
    x = 38,535.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.