Home / 21,345.12-32,034.02-9,666.54

Finding the Fourth Proportional to 21,345.12, 32,034.02 and 9,666.54

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Solution

The fourth proportional to 21,345.12, 32,034.02 and 9,666.54 is: 14,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.12 : 32,034.02 = 9,666.54 : x
  2. Step 2: Convert to fraction form
    21,345.12/32,034.02 = 9,666.54/x
  3. Step 3: Cross multiply
    21,345.12x = 32,034.02 × 9,666.54
  4. Step 4: Simplify right side
    21,345.12x = 309,658,087.36
  5. Step 5: Solve for x
    x = 309,658,087.36/21,345.12
  6. Step 6: Final answer
    x = 14,507.21

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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.