Home / 31,251.05-43,146.59-27,888.10

Finding the Fourth Proportional to 31,251.05, 43,146.59 and 27,888.10

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Solution

The fourth proportional to 31,251.05, 43,146.59 and 27,888.10 is: 38,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251.05 : 43,146.59 = 27,888.10 : x
  2. Step 2: Convert to fraction form
    31,251.05/43,146.59 = 27,888.10/x
  3. Step 3: Cross multiply
    31,251.05x = 43,146.59 × 27,888.10
  4. Step 4: Simplify right side
    31,251.05x = 1,203,276,416.58
  5. Step 5: Solve for x
    x = 1,203,276,416.58/31,251.05
  6. Step 6: Final answer
    x = 38,503.55

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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.