Home / 19,708.85-29,547.32-13,453.11

Finding the Fourth Proportional to 19,708.85, 29,547.32 and 13,453.11

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Solution

The fourth proportional to 19,708.85, 29,547.32 and 13,453.11 is: 20,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.85 : 29,547.32 = 13,453.11 : x
  2. Step 2: Convert to fraction form
    19,708.85/29,547.32 = 13,453.11/x
  3. Step 3: Cross multiply
    19,708.85x = 29,547.32 × 13,453.11
  4. Step 4: Simplify right side
    19,708.85x = 397,503,278.90
  5. Step 5: Solve for x
    x = 397,503,278.90/19,708.85
  6. Step 6: Final answer
    x = 20,168.77

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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.