Home / 36,509.09-54,865.87-21,720.29

Finding the Fourth Proportional to 36,509.09, 54,865.87 and 21,720.29

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Solution

The fourth proportional to 36,509.09, 54,865.87 and 21,720.29 is: 32,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,509.09 : 54,865.87 = 21,720.29 : x
  2. Step 2: Convert to fraction form
    36,509.09/54,865.87 = 21,720.29/x
  3. Step 3: Cross multiply
    36,509.09x = 54,865.87 × 21,720.29
  4. Step 4: Simplify right side
    36,509.09x = 1,191,702,278.87
  5. Step 5: Solve for x
    x = 1,191,702,278.87/36,509.09
  6. Step 6: Final answer
    x = 32,641.25

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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.