Home / 21,383.52-32,075.32-8,242.08

Finding the Fourth Proportional to 21,383.52, 32,075.32 and 8,242.08

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Solution

The fourth proportional to 21,383.52, 32,075.32 and 8,242.08 is: 12,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.52 : 32,075.32 = 8,242.08 : x
  2. Step 2: Convert to fraction form
    21,383.52/32,075.32 = 8,242.08/x
  3. Step 3: Cross multiply
    21,383.52x = 32,075.32 × 8,242.08
  4. Step 4: Simplify right side
    21,383.52x = 264,367,353.47
  5. Step 5: Solve for x
    x = 264,367,353.47/21,383.52
  6. Step 6: Final answer
    x = 12,363.14

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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.