Home / 21,832.08-30,156.12-16,177.20

Finding the Fourth Proportional to 21,832.08, 30,156.12 and 16,177.20

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Solution

The fourth proportional to 21,832.08, 30,156.12 and 16,177.20 is: 22,345.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,832.08 : 30,156.12 = 16,177.20 : x
  2. Step 2: Convert to fraction form
    21,832.08/30,156.12 = 16,177.20/x
  3. Step 3: Cross multiply
    21,832.08x = 30,156.12 × 16,177.20
  4. Step 4: Simplify right side
    21,832.08x = 487,841,584.46
  5. Step 5: Solve for x
    x = 487,841,584.46/21,832.08
  6. Step 6: Final answer
    x = 22,345.17

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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.