Home / 32,699.85-45,124.29-21,363.90

Finding the Fourth Proportional to 32,699.85, 45,124.29 and 21,363.90

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Solution

The fourth proportional to 32,699.85, 45,124.29 and 21,363.90 is: 29,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,699.85 : 45,124.29 = 21,363.90 : x
  2. Step 2: Convert to fraction form
    32,699.85/45,124.29 = 21,363.90/x
  3. Step 3: Cross multiply
    32,699.85x = 45,124.29 × 21,363.90
  4. Step 4: Simplify right side
    32,699.85x = 964,030,819.13
  5. Step 5: Solve for x
    x = 964,030,819.13/32,699.85
  6. Step 6: Final answer
    x = 29,481.20

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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.