Home / 19,988.74-27,584.02-10,913.79

Finding the Fourth Proportional to 19,988.74, 27,584.02 and 10,913.79

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Solution

The fourth proportional to 19,988.74, 27,584.02 and 10,913.79 is: 15,060.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.74 : 27,584.02 = 10,913.79 : x
  2. Step 2: Convert to fraction form
    19,988.74/27,584.02 = 10,913.79/x
  3. Step 3: Cross multiply
    19,988.74x = 27,584.02 × 10,913.79
  4. Step 4: Simplify right side
    19,988.74x = 301,046,201.64
  5. Step 5: Solve for x
    x = 301,046,201.64/19,988.74
  6. Step 6: Final answer
    x = 15,060.79

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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.