Home / 20,234.60-27,921.71-11,281.26

Finding the Fourth Proportional to 20,234.60, 27,921.71 and 11,281.26

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Solution

The fourth proportional to 20,234.60, 27,921.71 and 11,281.26 is: 15,567.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.60 : 27,921.71 = 11,281.26 : x
  2. Step 2: Convert to fraction form
    20,234.60/27,921.71 = 11,281.26/x
  3. Step 3: Cross multiply
    20,234.60x = 27,921.71 × 11,281.26
  4. Step 4: Simplify right side
    20,234.60x = 314,992,070.15
  5. Step 5: Solve for x
    x = 314,992,070.15/20,234.60
  6. Step 6: Final answer
    x = 15,567.00

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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.