Home / 21,824.38-30,117.85-12,393.14

Finding the Fourth Proportional to 21,824.38, 30,117.85 and 12,393.14

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Solution

The fourth proportional to 21,824.38, 30,117.85 and 12,393.14 is: 17,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.38 : 30,117.85 = 12,393.14 : x
  2. Step 2: Convert to fraction form
    21,824.38/30,117.85 = 12,393.14/x
  3. Step 3: Cross multiply
    21,824.38x = 30,117.85 × 12,393.14
  4. Step 4: Simplify right side
    21,824.38x = 373,254,731.55
  5. Step 5: Solve for x
    x = 373,254,731.55/21,824.38
  6. Step 6: Final answer
    x = 17,102.65

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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.