Home / 28,043.28-38,701.80-16,107.12

Finding the Fourth Proportional to 28,043.28, 38,701.80 and 16,107.12

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Solution

The fourth proportional to 28,043.28, 38,701.80 and 16,107.12 is: 22,229.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.28 : 38,701.80 = 16,107.12 : x
  2. Step 2: Convert to fraction form
    28,043.28/38,701.80 = 16,107.12/x
  3. Step 3: Cross multiply
    28,043.28x = 38,701.80 × 16,107.12
  4. Step 4: Simplify right side
    28,043.28x = 623,374,536.82
  5. Step 5: Solve for x
    x = 623,374,536.82/28,043.28
  6. Step 6: Final answer
    x = 22,229.02

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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.