Home / 28,171.13-42,256.69-7,394.63

Finding the Fourth Proportional to 28,171.13, 42,256.69 and 7,394.63

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Solution

The fourth proportional to 28,171.13, 42,256.69 and 7,394.63 is: 11,091.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.13 : 42,256.69 = 7,394.63 : x
  2. Step 2: Convert to fraction form
    28,171.13/42,256.69 = 7,394.63/x
  3. Step 3: Cross multiply
    28,171.13x = 42,256.69 × 7,394.63
  4. Step 4: Simplify right side
    28,171.13x = 312,472,357.80
  5. Step 5: Solve for x
    x = 312,472,357.80/28,171.13
  6. Step 6: Final answer
    x = 11,091.94

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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.