Home / 20,071.47-27,703.23-13,357.38

Finding the Fourth Proportional to 20,071.47, 27,703.23 and 13,357.38

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Solution

The fourth proportional to 20,071.47, 27,703.23 and 13,357.38 is: 18,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.47 : 27,703.23 = 13,357.38 : x
  2. Step 2: Convert to fraction form
    20,071.47/27,703.23 = 13,357.38/x
  3. Step 3: Cross multiply
    20,071.47x = 27,703.23 × 13,357.38
  4. Step 4: Simplify right side
    20,071.47x = 370,042,570.34
  5. Step 5: Solve for x
    x = 370,042,570.34/20,071.47
  6. Step 6: Final answer
    x = 18,436.25

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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.