Home / 21,308.04-31,962.52-5,513.41

Finding the Fourth Proportional to 21,308.04, 31,962.52 and 5,513.41

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Solution

The fourth proportional to 21,308.04, 31,962.52 and 5,513.41 is: 8,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.04 : 31,962.52 = 5,513.41 : x
  2. Step 2: Convert to fraction form
    21,308.04/31,962.52 = 5,513.41/x
  3. Step 3: Cross multiply
    21,308.04x = 31,962.52 × 5,513.41
  4. Step 4: Simplify right side
    21,308.04x = 176,222,543.52
  5. Step 5: Solve for x
    x = 176,222,543.52/21,308.04
  6. Step 6: Final answer
    x = 8,270.24

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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.