Home / 10,020.40-15,030.45-3,446.65

Finding the Fourth Proportional to 10,020.40, 15,030.45 and 3,446.65

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Solution

The fourth proportional to 10,020.40, 15,030.45 and 3,446.65 is: 5,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.40 : 15,030.45 = 3,446.65 : x
  2. Step 2: Convert to fraction form
    10,020.40/15,030.45 = 3,446.65/x
  3. Step 3: Cross multiply
    10,020.40x = 15,030.45 × 3,446.65
  4. Step 4: Simplify right side
    10,020.40x = 51,804,625.34
  5. Step 5: Solve for x
    x = 51,804,625.34/10,020.40
  6. Step 6: Final answer
    x = 5,169.91

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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.