Home / 30,945.66-42,723.63-29,174.46

Finding the Fourth Proportional to 30,945.66, 42,723.63 and 29,174.46

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Solution

The fourth proportional to 30,945.66, 42,723.63 and 29,174.46 is: 40,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.66 : 42,723.63 = 29,174.46 : x
  2. Step 2: Convert to fraction form
    30,945.66/42,723.63 = 29,174.46/x
  3. Step 3: Cross multiply
    30,945.66x = 42,723.63 × 29,174.46
  4. Step 4: Simplify right side
    30,945.66x = 1,246,438,834.49
  5. Step 5: Solve for x
    x = 1,246,438,834.49/30,945.66
  6. Step 6: Final answer
    x = 40,278.31

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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.