Home / 13,565.31-20,345.22-3,703.77

Finding the Fourth Proportional to 13,565.31, 20,345.22 and 3,703.77

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Solution

The fourth proportional to 13,565.31, 20,345.22 and 3,703.77 is: 5,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.31 : 20,345.22 = 3,703.77 : x
  2. Step 2: Convert to fraction form
    13,565.31/20,345.22 = 3,703.77/x
  3. Step 3: Cross multiply
    13,565.31x = 20,345.22 × 3,703.77
  4. Step 4: Simplify right side
    13,565.31x = 75,354,015.48
  5. Step 5: Solve for x
    x = 75,354,015.48/13,565.31
  6. Step 6: Final answer
    x = 5,554.91

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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.