Home / 38,382.94-57,581.70-13,430.08

Finding the Fourth Proportional to 38,382.94, 57,581.70 and 13,430.08

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Solution

The fourth proportional to 38,382.94, 57,581.70 and 13,430.08 is: 20,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382.94 : 57,581.70 = 13,430.08 : x
  2. Step 2: Convert to fraction form
    38,382.94/57,581.70 = 13,430.08/x
  3. Step 3: Cross multiply
    38,382.94x = 57,581.70 × 13,430.08
  4. Step 4: Simplify right side
    38,382.94x = 773,326,837.54
  5. Step 5: Solve for x
    x = 773,326,837.54/38,382.94
  6. Step 6: Final answer
    x = 20,147.67

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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.