Home / 38,005.67-57,020.81-18,281.66

Finding the Fourth Proportional to 38,005.67, 57,020.81 and 18,281.66

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Solution

The fourth proportional to 38,005.67, 57,020.81 and 18,281.66 is: 27,428.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,005.67 : 57,020.81 = 18,281.66 : x
  2. Step 2: Convert to fraction form
    38,005.67/57,020.81 = 18,281.66/x
  3. Step 3: Cross multiply
    38,005.67x = 57,020.81 × 18,281.66
  4. Step 4: Simplify right side
    38,005.67x = 1,042,435,061.34
  5. Step 5: Solve for x
    x = 1,042,435,061.34/38,005.67
  6. Step 6: Final answer
    x = 27,428.41

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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.