Home / 31,772.81-47,718.42-27,974.77

Finding the Fourth Proportional to 31,772.81, 47,718.42 and 27,974.77

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Solution

The fourth proportional to 31,772.81, 47,718.42 and 27,974.77 is: 42,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.81 : 47,718.42 = 27,974.77 : x
  2. Step 2: Convert to fraction form
    31,772.81/47,718.42 = 27,974.77/x
  3. Step 3: Cross multiply
    31,772.81x = 47,718.42 × 27,974.77
  4. Step 4: Simplify right side
    31,772.81x = 1,334,911,600.06
  5. Step 5: Solve for x
    x = 1,334,911,600.06/31,772.81
  6. Step 6: Final answer
    x = 42,014.28

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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.