Home / 43,185.24-64,778.10-12,020.52

Finding the Fourth Proportional to 43,185.24, 64,778.10 and 12,020.52

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Solution

The fourth proportional to 43,185.24, 64,778.10 and 12,020.52 is: 18,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,185.24 : 64,778.10 = 12,020.52 : x
  2. Step 2: Convert to fraction form
    43,185.24/64,778.10 = 12,020.52/x
  3. Step 3: Cross multiply
    43,185.24x = 64,778.10 × 12,020.52
  4. Step 4: Simplify right side
    43,185.24x = 778,666,446.61
  5. Step 5: Solve for x
    x = 778,666,446.61/43,185.24
  6. Step 6: Final answer
    x = 18,030.85

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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.