Home / 38,090.89-57,114.45-20,299.65

Finding the Fourth Proportional to 38,090.89, 57,114.45 and 20,299.65

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Solution

The fourth proportional to 38,090.89, 57,114.45 and 20,299.65 is: 30,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,090.89 : 57,114.45 = 20,299.65 : x
  2. Step 2: Convert to fraction form
    38,090.89/57,114.45 = 20,299.65/x
  3. Step 3: Cross multiply
    38,090.89x = 57,114.45 × 20,299.65
  4. Step 4: Simplify right side
    38,090.89x = 1,159,403,344.94
  5. Step 5: Solve for x
    x = 1,159,403,344.94/38,090.89
  6. Step 6: Final answer
    x = 30,437.81

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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.