Home / 39,720.69-59,589.23-11,641.65

Finding the Fourth Proportional to 39,720.69, 59,589.23 and 11,641.65

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Solution

The fourth proportional to 39,720.69, 59,589.23 and 11,641.65 is: 17,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.69 : 59,589.23 = 11,641.65 : x
  2. Step 2: Convert to fraction form
    39,720.69/59,589.23 = 11,641.65/x
  3. Step 3: Cross multiply
    39,720.69x = 59,589.23 × 11,641.65
  4. Step 4: Simplify right side
    39,720.69x = 693,716,901.22
  5. Step 5: Solve for x
    x = 693,716,901.22/39,720.69
  6. Step 6: Final answer
    x = 17,464.88

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1.5x scale

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.