Home / 28,398.40-42,595.72-11,754.08

Finding the Fourth Proportional to 28,398.40, 42,595.72 and 11,754.08

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Solution

The fourth proportional to 28,398.40, 42,595.72 and 11,754.08 is: 17,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.40 : 42,595.72 = 11,754.08 : x
  2. Step 2: Convert to fraction form
    28,398.40/42,595.72 = 11,754.08/x
  3. Step 3: Cross multiply
    28,398.40x = 42,595.72 × 11,754.08
  4. Step 4: Simplify right side
    28,398.40x = 500,673,500.54
  5. Step 5: Solve for x
    x = 500,673,500.54/28,398.40
  6. Step 6: Final answer
    x = 17,630.34

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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.