Home / 31,383.28-43,309.16-17,953.70

Finding the Fourth Proportional to 31,383.28, 43,309.16 and 17,953.70

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Solution

The fourth proportional to 31,383.28, 43,309.16 and 17,953.70 is: 24,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,383.28 : 43,309.16 = 17,953.70 : x
  2. Step 2: Convert to fraction form
    31,383.28/43,309.16 = 17,953.70/x
  3. Step 3: Cross multiply
    31,383.28x = 43,309.16 × 17,953.70
  4. Step 4: Simplify right side
    31,383.28x = 777,559,819.05
  5. Step 5: Solve for x
    x = 777,559,819.05/31,383.28
  6. Step 6: Final answer
    x = 24,776.25

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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.