Home / 43,173.90-64,765.17-12,009.15

Finding the Fourth Proportional to 43,173.90, 64,765.17 and 12,009.15

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Solution

The fourth proportional to 43,173.90, 64,765.17 and 12,009.15 is: 18,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,173.90 : 64,765.17 = 12,009.15 : x
  2. Step 2: Convert to fraction form
    43,173.90/64,765.17 = 12,009.15/x
  3. Step 3: Cross multiply
    43,173.90x = 64,765.17 × 12,009.15
  4. Step 4: Simplify right side
    43,173.90x = 777,774,641.31
  5. Step 5: Solve for x
    x = 777,774,641.31/43,173.90
  6. Step 6: Final answer
    x = 18,014.93

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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.