Home / 21,364.44-29,439.09-19,235.76

Finding the Fourth Proportional to 21,364.44, 29,439.09 and 19,235.76

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Solution

The fourth proportional to 21,364.44, 29,439.09 and 19,235.76 is: 26,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.44 : 29,439.09 = 19,235.76 : x
  2. Step 2: Convert to fraction form
    21,364.44/29,439.09 = 19,235.76/x
  3. Step 3: Cross multiply
    21,364.44x = 29,439.09 × 19,235.76
  4. Step 4: Simplify right side
    21,364.44x = 566,283,269.86
  5. Step 5: Solve for x
    x = 566,283,269.86/21,364.44
  6. Step 6: Final answer
    x = 26,505.88

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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.