Home / 21,865.61-30,173.48-12,433.97

Finding the Fourth Proportional to 21,865.61, 30,173.48 and 12,433.97

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Solution

The fourth proportional to 21,865.61, 30,173.48 and 12,433.97 is: 17,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.61 : 30,173.48 = 12,433.97 : x
  2. Step 2: Convert to fraction form
    21,865.61/30,173.48 = 12,433.97/x
  3. Step 3: Cross multiply
    21,865.61x = 30,173.48 × 12,433.97
  4. Step 4: Simplify right side
    21,865.61x = 375,176,082.95
  5. Step 5: Solve for x
    x = 375,176,082.95/21,865.61
  6. Step 6: Final answer
    x = 17,158.27

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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.