Home / 43,225.74-64,744.65-20,992.32

Finding the Fourth Proportional to 43,225.74, 64,744.65 and 20,992.32

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Solution

The fourth proportional to 43,225.74, 64,744.65 and 20,992.32 is: 31,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,225.74 : 64,744.65 = 20,992.32 : x
  2. Step 2: Convert to fraction form
    43,225.74/64,744.65 = 20,992.32/x
  3. Step 3: Cross multiply
    43,225.74x = 64,744.65 × 20,992.32
  4. Step 4: Simplify right side
    43,225.74x = 1,359,140,411.09
  5. Step 5: Solve for x
    x = 1,359,140,411.09/43,225.74
  6. Step 6: Final answer
    x = 31,442.85

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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.