Home / 21,823.38-30,116.47-12,392.14

Finding the Fourth Proportional to 21,823.38, 30,116.47 and 12,392.14

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Solution

The fourth proportional to 21,823.38, 30,116.47 and 12,392.14 is: 17,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.38 : 30,116.47 = 12,392.14 : x
  2. Step 2: Convert to fraction form
    21,823.38/30,116.47 = 12,392.14/x
  3. Step 3: Cross multiply
    21,823.38x = 30,116.47 × 12,392.14
  4. Step 4: Simplify right side
    21,823.38x = 373,207,512.55
  5. Step 5: Solve for x
    x = 373,207,512.55/21,823.38
  6. Step 6: Final answer
    x = 17,101.27

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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.