Home / 28,140.49-38,832.34-16,040.91

Finding the Fourth Proportional to 28,140.49, 38,832.34 and 16,040.91

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Solution

The fourth proportional to 28,140.49, 38,832.34 and 16,040.91 is: 22,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.49 : 38,832.34 = 16,040.91 : x
  2. Step 2: Convert to fraction form
    28,140.49/38,832.34 = 16,040.91/x
  3. Step 3: Cross multiply
    28,140.49x = 38,832.34 × 16,040.91
  4. Step 4: Simplify right side
    28,140.49x = 622,906,071.03
  5. Step 5: Solve for x
    x = 622,906,071.03/28,140.49
  6. Step 6: Final answer
    x = 22,135.58

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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.