Home / 21,227.52-31,865.88-11,386.02

Finding the Fourth Proportional to 21,227.52, 31,865.88 and 11,386.02

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Solution

The fourth proportional to 21,227.52, 31,865.88 and 11,386.02 is: 17,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.52 : 31,865.88 = 11,386.02 : x
  2. Step 2: Convert to fraction form
    21,227.52/31,865.88 = 11,386.02/x
  3. Step 3: Cross multiply
    21,227.52x = 31,865.88 × 11,386.02
  4. Step 4: Simplify right side
    21,227.52x = 362,825,547.00
  5. Step 5: Solve for x
    x = 362,825,547.00/21,227.52
  6. Step 6: Final answer
    x = 17,092.22

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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.