Home / 20,810.05-28,684.16-16,264.80

Finding the Fourth Proportional to 20,810.05, 28,684.16 and 16,264.80

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Solution

The fourth proportional to 20,810.05, 28,684.16 and 16,264.80 is: 22,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.05 : 28,684.16 = 16,264.80 : x
  2. Step 2: Convert to fraction form
    20,810.05/28,684.16 = 16,264.80/x
  3. Step 3: Cross multiply
    20,810.05x = 28,684.16 × 16,264.80
  4. Step 4: Simplify right side
    20,810.05x = 466,542,105.24
  5. Step 5: Solve for x
    x = 466,542,105.24/20,810.05
  6. Step 6: Final answer
    x = 22,419.08

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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.