Home / 28,076.19-38,744.56-16,139.22

Finding the Fourth Proportional to 28,076.19, 38,744.56 and 16,139.22

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Solution

The fourth proportional to 28,076.19, 38,744.56 and 16,139.22 is: 22,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.19 : 38,744.56 = 16,139.22 : x
  2. Step 2: Convert to fraction form
    28,076.19/38,744.56 = 16,139.22/x
  3. Step 3: Cross multiply
    28,076.19x = 38,744.56 × 16,139.22
  4. Step 4: Simplify right side
    28,076.19x = 625,306,977.64
  5. Step 5: Solve for x
    x = 625,306,977.64/28,076.19
  6. Step 6: Final answer
    x = 22,271.79

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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.