Home / 20,317.54-28,026.92-11,818.71

Finding the Fourth Proportional to 20,317.54, 28,026.92 and 11,818.71

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Solution

The fourth proportional to 20,317.54, 28,026.92 and 11,818.71 is: 16,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.54 : 28,026.92 = 11,818.71 : x
  2. Step 2: Convert to fraction form
    20,317.54/28,026.92 = 11,818.71/x
  3. Step 3: Cross multiply
    20,317.54x = 28,026.92 × 11,818.71
  4. Step 4: Simplify right side
    20,317.54x = 331,241,840.45
  5. Step 5: Solve for x
    x = 331,241,840.45/20,317.54
  6. Step 6: Final answer
    x = 16,303.25

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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.