Home / 28,038.24-38,691.36-16,100.64

Finding the Fourth Proportional to 28,038.24, 38,691.36 and 16,100.64

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Solution

The fourth proportional to 28,038.24, 38,691.36 and 16,100.64 is: 22,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.24 : 38,691.36 = 16,100.64 : x
  2. Step 2: Convert to fraction form
    28,038.24/38,691.36 = 16,100.64/x
  3. Step 3: Cross multiply
    28,038.24x = 38,691.36 × 16,100.64
  4. Step 4: Simplify right side
    28,038.24x = 622,955,658.47
  5. Step 5: Solve for x
    x = 622,955,658.47/28,038.24
  6. Step 6: Final answer
    x = 22,218.07

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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.