Home / 38,089.89-57,112.95-20,298.65

Finding the Fourth Proportional to 38,089.89, 57,112.95 and 20,298.65

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Solution

The fourth proportional to 38,089.89, 57,112.95 and 20,298.65 is: 30,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,089.89 : 57,112.95 = 20,298.65 : x
  2. Step 2: Convert to fraction form
    38,089.89/57,112.95 = 20,298.65/x
  3. Step 3: Cross multiply
    38,089.89x = 57,112.95 × 20,298.65
  4. Step 4: Simplify right side
    38,089.89x = 1,159,315,496.95
  5. Step 5: Solve for x
    x = 1,159,315,496.95/38,089.89
  6. Step 6: Final answer
    x = 30,436.30

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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.