Home / 21,887.04-30,202.88-12,935.38

Finding the Fourth Proportional to 21,887.04, 30,202.88 and 12,935.38

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Solution

The fourth proportional to 21,887.04, 30,202.88 and 12,935.38 is: 17,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.04 : 30,202.88 = 12,935.38 : x
  2. Step 2: Convert to fraction form
    21,887.04/30,202.88 = 12,935.38/x
  3. Step 3: Cross multiply
    21,887.04x = 30,202.88 × 12,935.38
  4. Step 4: Simplify right side
    21,887.04x = 390,685,514.20
  5. Step 5: Solve for x
    x = 390,685,514.20/21,887.04
  6. Step 6: Final answer
    x = 17,850.08

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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.