Home / 20,319.95-28,038.96-11,824.82

Finding the Fourth Proportional to 20,319.95, 28,038.96 and 11,824.82

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Solution

The fourth proportional to 20,319.95, 28,038.96 and 11,824.82 is: 16,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.95 : 28,038.96 = 11,824.82 : x
  2. Step 2: Convert to fraction form
    20,319.95/28,038.96 = 11,824.82/x
  3. Step 3: Cross multiply
    20,319.95x = 28,038.96 × 11,824.82
  4. Step 4: Simplify right side
    20,319.95x = 331,555,514.79
  5. Step 5: Solve for x
    x = 331,555,514.79/20,319.95
  6. Step 6: Final answer
    x = 16,316.75

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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.