Home / 19,645.20-29,444.36-13,689.83

Finding the Fourth Proportional to 19,645.20, 29,444.36 and 13,689.83

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Solution

The fourth proportional to 19,645.20, 29,444.36 and 13,689.83 is: 20,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.20 : 29,444.36 = 13,689.83 : x
  2. Step 2: Convert to fraction form
    19,645.20/29,444.36 = 13,689.83/x
  3. Step 3: Cross multiply
    19,645.20x = 29,444.36 × 13,689.83
  4. Step 4: Simplify right side
    19,645.20x = 403,088,199.40
  5. Step 5: Solve for x
    x = 403,088,199.40/19,645.20
  6. Step 6: Final answer
    x = 20,518.41

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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.