Home / 31,399.74-43,329.12-17,967.92

Finding the Fourth Proportional to 31,399.74, 43,329.12 and 17,967.92

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Solution

The fourth proportional to 31,399.74, 43,329.12 and 17,967.92 is: 24,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.74 : 43,329.12 = 17,967.92 : x
  2. Step 2: Convert to fraction form
    31,399.74/43,329.12 = 17,967.92/x
  3. Step 3: Cross multiply
    31,399.74x = 43,329.12 × 17,967.92
  4. Step 4: Simplify right side
    31,399.74x = 778,533,945.18
  5. Step 5: Solve for x
    x = 778,533,945.18/31,399.74
  6. Step 6: Final answer
    x = 24,794.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.