Home / 28,189.84-42,305.28-22,709.36

Finding the Fourth Proportional to 28,189.84, 42,305.28 and 22,709.36

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Solution

The fourth proportional to 28,189.84, 42,305.28 and 22,709.36 is: 34,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.84 : 42,305.28 = 22,709.36 : x
  2. Step 2: Convert to fraction form
    28,189.84/42,305.28 = 22,709.36/x
  3. Step 3: Cross multiply
    28,189.84x = 42,305.28 × 22,709.36
  4. Step 4: Simplify right side
    28,189.84x = 960,725,833.42
  5. Step 5: Solve for x
    x = 960,725,833.42/28,189.84
  6. Step 6: Final answer
    x = 34,080.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.