Home / 30,642.10-45,963.27-20,251.54

Finding the Fourth Proportional to 30,642.10, 45,963.27 and 20,251.54

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Solution

The fourth proportional to 30,642.10, 45,963.27 and 20,251.54 is: 30,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.10 : 45,963.27 = 20,251.54 : x
  2. Step 2: Convert to fraction form
    30,642.10/45,963.27 = 20,251.54/x
  3. Step 3: Cross multiply
    30,642.10x = 45,963.27 × 20,251.54
  4. Step 4: Simplify right side
    30,642.10x = 930,827,191.79
  5. Step 5: Solve for x
    x = 930,827,191.79/30,642.10
  6. Step 6: Final answer
    x = 30,377.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.