Home / 39,319.71-58,979.21-15,940.59

Finding the Fourth Proportional to 39,319.71, 58,979.21 and 15,940.59

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Solution

The fourth proportional to 39,319.71, 58,979.21 and 15,940.59 is: 23,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319.71 : 58,979.21 = 15,940.59 : x
  2. Step 2: Convert to fraction form
    39,319.71/58,979.21 = 15,940.59/x
  3. Step 3: Cross multiply
    39,319.71x = 58,979.21 × 15,940.59
  4. Step 4: Simplify right side
    39,319.71x = 940,163,325.43
  5. Step 5: Solve for x
    x = 940,163,325.43/39,319.71
  6. Step 6: Final answer
    x = 23,910.74

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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.