Home / 21,061.44-29,064.78-12,110.70

Finding the Fourth Proportional to 21,061.44, 29,064.78 and 12,110.70

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Solution

The fourth proportional to 21,061.44, 29,064.78 and 12,110.70 is: 16,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061.44 : 29,064.78 = 12,110.70 : x
  2. Step 2: Convert to fraction form
    21,061.44/29,064.78 = 12,110.70/x
  3. Step 3: Cross multiply
    21,061.44x = 29,064.78 × 12,110.70
  4. Step 4: Simplify right side
    21,061.44x = 351,994,831.15
  5. Step 5: Solve for x
    x = 351,994,831.15/21,061.44
  6. Step 6: Final answer
    x = 16,712.76

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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.