Home / 21,833.58-30,158.19-16,178.70

Finding the Fourth Proportional to 21,833.58, 30,158.19 and 16,178.70

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Solution

The fourth proportional to 21,833.58, 30,158.19 and 16,178.70 is: 22,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.58 : 30,158.19 = 16,178.70 : x
  2. Step 2: Convert to fraction form
    21,833.58/30,158.19 = 16,178.70/x
  3. Step 3: Cross multiply
    21,833.58x = 30,158.19 × 16,178.70
  4. Step 4: Simplify right side
    21,833.58x = 487,920,308.55
  5. Step 5: Solve for x
    x = 487,920,308.55/21,833.58
  6. Step 6: Final answer
    x = 22,347.24

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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.