Home / 31,302.86-43,197.81-17,155.70

Finding the Fourth Proportional to 31,302.86, 43,197.81 and 17,155.70

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Solution

The fourth proportional to 31,302.86, 43,197.81 and 17,155.70 is: 23,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.86 : 43,197.81 = 17,155.70 : x
  2. Step 2: Convert to fraction form
    31,302.86/43,197.81 = 17,155.70/x
  3. Step 3: Cross multiply
    31,302.86x = 43,197.81 × 17,155.70
  4. Step 4: Simplify right side
    31,302.86x = 741,088,550.69
  5. Step 5: Solve for x
    x = 741,088,550.69/31,302.86
  6. Step 6: Final answer
    x = 23,674.79

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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.