Home / 21,935.24-30,270.18-11,999.24

Finding the Fourth Proportional to 21,935.24, 30,270.18 and 11,999.24

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Solution

The fourth proportional to 21,935.24, 30,270.18 and 11,999.24 is: 16,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.24 : 30,270.18 = 11,999.24 : x
  2. Step 2: Convert to fraction form
    21,935.24/30,270.18 = 11,999.24/x
  3. Step 3: Cross multiply
    21,935.24x = 30,270.18 × 11,999.24
  4. Step 4: Simplify right side
    21,935.24x = 363,219,154.66
  5. Step 5: Solve for x
    x = 363,219,154.66/21,935.24
  6. Step 6: Final answer
    x = 16,558.70

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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.