Home / 28,207.77-38,928.00-16,109.31

Finding the Fourth Proportional to 28,207.77, 38,928.00 and 16,109.31

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Solution

The fourth proportional to 28,207.77, 38,928.00 and 16,109.31 is: 22,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.77 : 38,928.00 = 16,109.31 : x
  2. Step 2: Convert to fraction form
    28,207.77/38,928.00 = 16,109.31/x
  3. Step 3: Cross multiply
    28,207.77x = 38,928.00 × 16,109.31
  4. Step 4: Simplify right side
    28,207.77x = 627,103,216.53
  5. Step 5: Solve for x
    x = 627,103,216.53/28,207.77
  6. Step 6: Final answer
    x = 22,231.57

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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.