Home / 20,280.84-27,981.36-16,032.66

Finding the Fourth Proportional to 20,280.84, 27,981.36 and 16,032.66

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Solution

The fourth proportional to 20,280.84, 27,981.36 and 16,032.66 is: 22,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280.84 : 27,981.36 = 16,032.66 : x
  2. Step 2: Convert to fraction form
    20,280.84/27,981.36 = 16,032.66/x
  3. Step 3: Cross multiply
    20,280.84x = 27,981.36 × 16,032.66
  4. Step 4: Simplify right side
    20,280.84x = 448,615,631.22
  5. Step 5: Solve for x
    x = 448,615,631.22/20,280.84
  6. Step 6: Final answer
    x = 22,120.17

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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.