Home / 28,335.48-42,487.56-11,453.28

Finding the Fourth Proportional to 28,335.48, 42,487.56 and 11,453.28

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Solution

The fourth proportional to 28,335.48, 42,487.56 and 11,453.28 is: 17,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.48 : 42,487.56 = 11,453.28 : x
  2. Step 2: Convert to fraction form
    28,335.48/42,487.56 = 11,453.28/x
  3. Step 3: Cross multiply
    28,335.48x = 42,487.56 × 11,453.28
  4. Step 4: Simplify right side
    28,335.48x = 486,621,921.20
  5. Step 5: Solve for x
    x = 486,621,921.20/28,335.48
  6. Step 6: Final answer
    x = 17,173.59

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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.