Home / 39,319.14-58,979.16-21,899.64

Finding the Fourth Proportional to 39,319.14, 58,979.16 and 21,899.64

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Solution

The fourth proportional to 39,319.14, 58,979.16 and 21,899.64 is: 32,849.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319.14 : 58,979.16 = 21,899.64 : x
  2. Step 2: Convert to fraction form
    39,319.14/58,979.16 = 21,899.64/x
  3. Step 3: Cross multiply
    39,319.14x = 58,979.16 × 21,899.64
  4. Step 4: Simplify right side
    39,319.14x = 1,291,622,371.50
  5. Step 5: Solve for x
    x = 1,291,622,371.50/39,319.14
  6. Step 6: Final answer
    x = 32,849.71

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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.