Home / 20,071.23-27,703.98-12,113.97

Finding the Fourth Proportional to 20,071.23, 27,703.98 and 12,113.97

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Solution

The fourth proportional to 20,071.23, 27,703.98 and 12,113.97 is: 16,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.23 : 27,703.98 = 12,113.97 : x
  2. Step 2: Convert to fraction form
    20,071.23/27,703.98 = 12,113.97/x
  3. Step 3: Cross multiply
    20,071.23x = 27,703.98 × 12,113.97
  4. Step 4: Simplify right side
    20,071.23x = 335,605,182.60
  5. Step 5: Solve for x
    x = 335,605,182.60/20,071.23
  6. Step 6: Final answer
    x = 16,720.71

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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.