Home / 37,980.57-56,971.76-13,020.43

Finding the Fourth Proportional to 37,980.57, 56,971.76 and 13,020.43

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Solution

The fourth proportional to 37,980.57, 56,971.76 and 13,020.43 is: 19,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,980.57 : 56,971.76 = 13,020.43 : x
  2. Step 2: Convert to fraction form
    37,980.57/56,971.76 = 13,020.43/x
  3. Step 3: Cross multiply
    37,980.57x = 56,971.76 × 13,020.43
  4. Step 4: Simplify right side
    37,980.57x = 741,796,747.95
  5. Step 5: Solve for x
    x = 741,796,747.95/37,980.57
  6. Step 6: Final answer
    x = 19,530.95

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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.