Home / 43,031.04-64,563.12-20,842.68

Finding the Fourth Proportional to 43,031.04, 64,563.12 and 20,842.68

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Solution

The fourth proportional to 43,031.04, 64,563.12 and 20,842.68 is: 31,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,031.04 : 64,563.12 = 20,842.68 : x
  2. Step 2: Convert to fraction form
    43,031.04/64,563.12 = 20,842.68/x
  3. Step 3: Cross multiply
    43,031.04x = 64,563.12 × 20,842.68
  4. Step 4: Simplify right side
    43,031.04x = 1,345,668,449.96
  5. Step 5: Solve for x
    x = 1,345,668,449.96/43,031.04
  6. Step 6: Final answer
    x = 31,272.04

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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.