Home / 21,882.02-30,193.91-12,320.52

Finding the Fourth Proportional to 21,882.02, 30,193.91 and 12,320.52

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Solution

The fourth proportional to 21,882.02, 30,193.91 and 12,320.52 is: 17,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.02 : 30,193.91 = 12,320.52 : x
  2. Step 2: Convert to fraction form
    21,882.02/30,193.91 = 12,320.52/x
  3. Step 3: Cross multiply
    21,882.02x = 30,193.91 × 12,320.52
  4. Step 4: Simplify right side
    21,882.02x = 372,004,672.03
  5. Step 5: Solve for x
    x = 372,004,672.03/21,882.02
  6. Step 6: Final answer
    x = 17,000.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.