Home / 39,720.57-59,589.05-11,641.54

Finding the Fourth Proportional to 39,720.57, 59,589.05 and 11,641.54

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Solution

The fourth proportional to 39,720.57, 59,589.05 and 11,641.54 is: 17,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.57 : 59,589.05 = 11,641.54 : x
  2. Step 2: Convert to fraction form
    39,720.57/59,589.05 = 11,641.54/x
  3. Step 3: Cross multiply
    39,720.57x = 59,589.05 × 11,641.54
  4. Step 4: Simplify right side
    39,720.57x = 693,708,011.19
  5. Step 5: Solve for x
    x = 693,708,011.19/39,720.57
  6. Step 6: Final answer
    x = 17,464.71

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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.