Home / 20,836.59-28,748.62-12,334.98

Finding the Fourth Proportional to 20,836.59, 28,748.62 and 12,334.98

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Solution

The fourth proportional to 20,836.59, 28,748.62 and 12,334.98 is: 17,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.59 : 28,748.62 = 12,334.98 : x
  2. Step 2: Convert to fraction form
    20,836.59/28,748.62 = 12,334.98/x
  3. Step 3: Cross multiply
    20,836.59x = 28,748.62 × 12,334.98
  4. Step 4: Simplify right side
    20,836.59x = 354,613,775.95
  5. Step 5: Solve for x
    x = 354,613,775.95/20,836.59
  6. Step 6: Final answer
    x = 17,018.80

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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.