Home / 28,158.58-38,856.20-16,825.82

Finding the Fourth Proportional to 28,158.58, 38,856.20 and 16,825.82

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Solution

The fourth proportional to 28,158.58, 38,856.20 and 16,825.82 is: 23,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.58 : 38,856.20 = 16,825.82 : x
  2. Step 2: Convert to fraction form
    28,158.58/38,856.20 = 16,825.82/x
  3. Step 3: Cross multiply
    28,158.58x = 38,856.20 × 16,825.82
  4. Step 4: Simplify right side
    28,158.58x = 653,787,427.08
  5. Step 5: Solve for x
    x = 653,787,427.08/28,158.58
  6. Step 6: Final answer
    x = 23,218.05

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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.