Home / 20,877.29-28,810.06-11,924.60

Finding the Fourth Proportional to 20,877.29, 28,810.06 and 11,924.60

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Solution

The fourth proportional to 20,877.29, 28,810.06 and 11,924.60 is: 16,455.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.29 : 28,810.06 = 11,924.60 : x
  2. Step 2: Convert to fraction form
    20,877.29/28,810.06 = 11,924.60/x
  3. Step 3: Cross multiply
    20,877.29x = 28,810.06 × 11,924.60
  4. Step 4: Simplify right side
    20,877.29x = 343,548,483.69
  5. Step 5: Solve for x
    x = 343,548,483.69/20,877.29
  6. Step 6: Final answer
    x = 16,455.61

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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.