Home / 31,853.03-47,785.28-13,122.82

Finding the Fourth Proportional to 31,853.03, 47,785.28 and 13,122.82

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Solution

The fourth proportional to 31,853.03, 47,785.28 and 13,122.82 is: 19,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,853.03 : 47,785.28 = 13,122.82 : x
  2. Step 2: Convert to fraction form
    31,853.03/47,785.28 = 13,122.82/x
  3. Step 3: Cross multiply
    31,853.03x = 47,785.28 × 13,122.82
  4. Step 4: Simplify right side
    31,853.03x = 627,077,622.21
  5. Step 5: Solve for x
    x = 627,077,622.21/31,853.03
  6. Step 6: Final answer
    x = 19,686.60

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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.