Home / 21,464.24-32,194.96-7,421

Finding the Fourth Proportional to 21,464.24, 32,194.96 and 7,421

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Solution

The fourth proportional to 21,464.24, 32,194.96 and 7,421 is: 11,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.24 : 32,194.96 = 7,421 : x
  2. Step 2: Convert to fraction form
    21,464.24/32,194.96 = 7,421/x
  3. Step 3: Cross multiply
    21,464.24x = 32,194.96 × 7,421
  4. Step 4: Simplify right side
    21,464.24x = 238,918,798.16
  5. Step 5: Solve for x
    x = 238,918,798.16/21,464.24
  6. Step 6: Final answer
    x = 11,131.02

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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.