Home / 30,433.25-41,947.71-20,358.07

Finding the Fourth Proportional to 30,433.25, 41,947.71 and 20,358.07

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Solution

The fourth proportional to 30,433.25, 41,947.71 and 20,358.07 is: 28,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,433.25 : 41,947.71 = 20,358.07 : x
  2. Step 2: Convert to fraction form
    30,433.25/41,947.71 = 20,358.07/x
  3. Step 3: Cross multiply
    30,433.25x = 41,947.71 × 20,358.07
  4. Step 4: Simplify right side
    30,433.25x = 853,974,235.31
  5. Step 5: Solve for x
    x = 853,974,235.31/30,433.25
  6. Step 6: Final answer
    x = 28,060.56

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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.