Home / 21,616.74-29,831.49-12,057.12

Finding the Fourth Proportional to 21,616.74, 29,831.49 and 12,057.12

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Solution

The fourth proportional to 21,616.74, 29,831.49 and 12,057.12 is: 16,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.74 : 29,831.49 = 12,057.12 : x
  2. Step 2: Convert to fraction form
    21,616.74/29,831.49 = 12,057.12/x
  3. Step 3: Cross multiply
    21,616.74x = 29,831.49 × 12,057.12
  4. Step 4: Simplify right side
    21,616.74x = 359,681,854.71
  5. Step 5: Solve for x
    x = 359,681,854.71/21,616.74
  6. Step 6: Final answer
    x = 16,639.04

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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.