Home / 21,556.56-32,345.70-9,872.52

Finding the Fourth Proportional to 21,556.56, 32,345.70 and 9,872.52

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Solution

The fourth proportional to 21,556.56, 32,345.70 and 9,872.52 is: 14,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.56 : 32,345.70 = 9,872.52 : x
  2. Step 2: Convert to fraction form
    21,556.56/32,345.70 = 9,872.52/x
  3. Step 3: Cross multiply
    21,556.56x = 32,345.70 × 9,872.52
  4. Step 4: Simplify right side
    21,556.56x = 319,333,570.16
  5. Step 5: Solve for x
    x = 319,333,570.16/21,556.56
  6. Step 6: Final answer
    x = 14,813.75

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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.