Home / 43,308.24-64,970.28-13,321.92

Finding the Fourth Proportional to 43,308.24, 64,970.28 and 13,321.92

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Solution

The fourth proportional to 43,308.24, 64,970.28 and 13,321.92 is: 19,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.24 : 64,970.28 = 13,321.92 : x
  2. Step 2: Convert to fraction form
    43,308.24/64,970.28 = 13,321.92/x
  3. Step 3: Cross multiply
    43,308.24x = 64,970.28 × 13,321.92
  4. Step 4: Simplify right side
    43,308.24x = 865,528,872.54
  5. Step 5: Solve for x
    x = 865,528,872.54/43,308.24
  6. Step 6: Final answer
    x = 19,985.32

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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.