Home / 43,038.32-64,559.40-13,456.76

Finding the Fourth Proportional to 43,038.32, 64,559.40 and 13,456.76

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Solution

The fourth proportional to 43,038.32, 64,559.40 and 13,456.76 is: 20,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,038.32 : 64,559.40 = 13,456.76 : x
  2. Step 2: Convert to fraction form
    43,038.32/64,559.40 = 13,456.76/x
  3. Step 3: Cross multiply
    43,038.32x = 64,559.40 × 13,456.76
  4. Step 4: Simplify right side
    43,038.32x = 868,760,351.54
  5. Step 5: Solve for x
    x = 868,760,351.54/43,038.32
  6. Step 6: Final answer
    x = 20,185.74

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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.