Home / 31,774.08-43,830.02-19,816.66

Finding the Fourth Proportional to 31,774.08, 43,830.02 and 19,816.66

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Solution

The fourth proportional to 31,774.08, 43,830.02 and 19,816.66 is: 27,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,774.08 : 43,830.02 = 19,816.66 : x
  2. Step 2: Convert to fraction form
    31,774.08/43,830.02 = 19,816.66/x
  3. Step 3: Cross multiply
    31,774.08x = 43,830.02 × 19,816.66
  4. Step 4: Simplify right side
    31,774.08x = 868,564,708.46
  5. Step 5: Solve for x
    x = 868,564,708.46/31,774.08
  6. Step 6: Final answer
    x = 27,335.63

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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.