Home / 21,403.58-32,091.71-10,288.16

Finding the Fourth Proportional to 21,403.58, 32,091.71 and 10,288.16

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Solution

The fourth proportional to 21,403.58, 32,091.71 and 10,288.16 is: 15,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.58 : 32,091.71 = 10,288.16 : x
  2. Step 2: Convert to fraction form
    21,403.58/32,091.71 = 10,288.16/x
  3. Step 3: Cross multiply
    21,403.58x = 32,091.71 × 10,288.16
  4. Step 4: Simplify right side
    21,403.58x = 330,164,435.25
  5. Step 5: Solve for x
    x = 330,164,435.25/21,403.58
  6. Step 6: Final answer
    x = 15,425.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.