Home / 21,463.22-29,604.40-15,103.15

Finding the Fourth Proportional to 21,463.22, 29,604.40 and 15,103.15

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Solution

The fourth proportional to 21,463.22, 29,604.40 and 15,103.15 is: 20,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.22 : 29,604.40 = 15,103.15 : x
  2. Step 2: Convert to fraction form
    21,463.22/29,604.40 = 15,103.15/x
  3. Step 3: Cross multiply
    21,463.22x = 29,604.40 × 15,103.15
  4. Step 4: Simplify right side
    21,463.22x = 447,119,693.86
  5. Step 5: Solve for x
    x = 447,119,693.86/21,463.22
  6. Step 6: Final answer
    x = 20,831.90

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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.