Home / 38,315.16-57,353.94-20,741.40

Finding the Fourth Proportional to 38,315.16, 57,353.94 and 20,741.40

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Solution

The fourth proportional to 38,315.16, 57,353.94 and 20,741.40 is: 31,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.16 : 57,353.94 = 20,741.40 : x
  2. Step 2: Convert to fraction form
    38,315.16/57,353.94 = 20,741.40/x
  3. Step 3: Cross multiply
    38,315.16x = 57,353.94 × 20,741.40
  4. Step 4: Simplify right side
    38,315.16x = 1,189,601,011.12
  5. Step 5: Solve for x
    x = 1,189,601,011.12/38,315.16
  6. Step 6: Final answer
    x = 31,047.79

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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.