Home / 19,646.56-27,091.88-15,171.04

Finding the Fourth Proportional to 19,646.56, 27,091.88 and 15,171.04

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Solution

The fourth proportional to 19,646.56, 27,091.88 and 15,171.04 is: 20,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.56 : 27,091.88 = 15,171.04 : x
  2. Step 2: Convert to fraction form
    19,646.56/27,091.88 = 15,171.04/x
  3. Step 3: Cross multiply
    19,646.56x = 27,091.88 × 15,171.04
  4. Step 4: Simplify right side
    19,646.56x = 411,011,995.16
  5. Step 5: Solve for x
    x = 411,011,995.16/19,646.56
  6. Step 6: Final answer
    x = 20,920.30

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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.