Home / 30,759.10-42,451.60-17,332.96

Finding the Fourth Proportional to 30,759.10, 42,451.60 and 17,332.96

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Solution

The fourth proportional to 30,759.10, 42,451.60 and 17,332.96 is: 23,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,759.10 : 42,451.60 = 17,332.96 : x
  2. Step 2: Convert to fraction form
    30,759.10/42,451.60 = 17,332.96/x
  3. Step 3: Cross multiply
    30,759.10x = 42,451.60 × 17,332.96
  4. Step 4: Simplify right side
    30,759.10x = 735,811,884.74
  5. Step 5: Solve for x
    x = 735,811,884.74/30,759.10
  6. Step 6: Final answer
    x = 23,921.76

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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.