Home / 38,780.29-57,907.75-30,793.18

Finding the Fourth Proportional to 38,780.29, 57,907.75 and 30,793.18

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Solution

The fourth proportional to 38,780.29, 57,907.75 and 30,793.18 is: 45,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.29 : 57,907.75 = 30,793.18 : x
  2. Step 2: Convert to fraction form
    38,780.29/57,907.75 = 30,793.18/x
  3. Step 3: Cross multiply
    38,780.29x = 57,907.75 × 30,793.18
  4. Step 4: Simplify right side
    38,780.29x = 1,783,163,769.15
  5. Step 5: Solve for x
    x = 1,783,163,769.15/38,780.29
  6. Step 6: Final answer
    x = 45,981.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.