Home / 43,243.20-64,841.76-13,648.32

Finding the Fourth Proportional to 43,243.20, 64,841.76 and 13,648.32

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Solution

The fourth proportional to 43,243.20, 64,841.76 and 13,648.32 is: 20,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,243.20 : 64,841.76 = 13,648.32 : x
  2. Step 2: Convert to fraction form
    43,243.20/64,841.76 = 13,648.32/x
  3. Step 3: Cross multiply
    43,243.20x = 64,841.76 × 13,648.32
  4. Step 4: Simplify right side
    43,243.20x = 884,981,089.84
  5. Step 5: Solve for x
    x = 884,981,089.84/43,243.20
  6. Step 6: Final answer
    x = 20,465.21

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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.