Home / 37,785.42-52,140.92-21,870.95

Finding the Fourth Proportional to 37,785.42, 52,140.92 and 21,870.95

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Solution

The fourth proportional to 37,785.42, 52,140.92 and 21,870.95 is: 30,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,785.42 : 52,140.92 = 21,870.95 : x
  2. Step 2: Convert to fraction form
    37,785.42/52,140.92 = 21,870.95/x
  3. Step 3: Cross multiply
    37,785.42x = 52,140.92 × 21,870.95
  4. Step 4: Simplify right side
    37,785.42x = 1,140,371,084.21
  5. Step 5: Solve for x
    x = 1,140,371,084.21/37,785.42
  6. Step 6: Final answer
    x = 30,180.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.