Home / 28,043.68-38,701.26-16,109.20

Finding the Fourth Proportional to 28,043.68, 38,701.26 and 16,109.20

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Solution

The fourth proportional to 28,043.68, 38,701.26 and 16,109.20 is: 22,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.68 : 38,701.26 = 16,109.20 : x
  2. Step 2: Convert to fraction form
    28,043.68/38,701.26 = 16,109.20/x
  3. Step 3: Cross multiply
    28,043.68x = 38,701.26 × 16,109.20
  4. Step 4: Simplify right side
    28,043.68x = 623,446,337.59
  5. Step 5: Solve for x
    x = 623,446,337.59/28,043.68
  6. Step 6: Final answer
    x = 22,231.26

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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.