Home / 28,171.27-42,278.16-19,265.32

Finding the Fourth Proportional to 28,171.27, 42,278.16 and 19,265.32

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Solution

The fourth proportional to 28,171.27, 42,278.16 and 19,265.32 is: 28,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.27 : 42,278.16 = 19,265.32 : x
  2. Step 2: Convert to fraction form
    28,171.27/42,278.16 = 19,265.32/x
  3. Step 3: Cross multiply
    28,171.27x = 42,278.16 × 19,265.32
  4. Step 4: Simplify right side
    28,171.27x = 814,502,281.41
  5. Step 5: Solve for x
    x = 814,502,281.41/28,171.27
  6. Step 6: Final answer
    x = 28,912.52

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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.