Home / 20,148.49-27,801.93-11,196.10

Finding the Fourth Proportional to 20,148.49, 27,801.93 and 11,196.10

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Solution

The fourth proportional to 20,148.49, 27,801.93 and 11,196.10 is: 15,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.49 : 27,801.93 = 11,196.10 : x
  2. Step 2: Convert to fraction form
    20,148.49/27,801.93 = 11,196.10/x
  3. Step 3: Cross multiply
    20,148.49x = 27,801.93 × 11,196.10
  4. Step 4: Simplify right side
    20,148.49x = 311,273,188.47
  5. Step 5: Solve for x
    x = 311,273,188.47/20,148.49
  6. Step 6: Final answer
    x = 15,448.96

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1.5x scale

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.