Home / 20,308.66-28,027.29-12,351.22

Finding the Fourth Proportional to 20,308.66, 28,027.29 and 12,351.22

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Solution

The fourth proportional to 20,308.66, 28,027.29 and 12,351.22 is: 17,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.66 : 28,027.29 = 12,351.22 : x
  2. Step 2: Convert to fraction form
    20,308.66/28,027.29 = 12,351.22/x
  3. Step 3: Cross multiply
    20,308.66x = 28,027.29 × 12,351.22
  4. Step 4: Simplify right side
    20,308.66x = 346,171,224.79
  5. Step 5: Solve for x
    x = 346,171,224.79/20,308.66
  6. Step 6: Final answer
    x = 17,045.50

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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.