Home / 20,316.59-30,387.41-18,080.99

Finding the Fourth Proportional to 20,316.59, 30,387.41 and 18,080.99

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Solution

The fourth proportional to 20,316.59, 30,387.41 and 18,080.99 is: 27,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.59 : 30,387.41 = 18,080.99 : x
  2. Step 2: Convert to fraction form
    20,316.59/30,387.41 = 18,080.99/x
  3. Step 3: Cross multiply
    20,316.59x = 30,387.41 × 18,080.99
  4. Step 4: Simplify right side
    20,316.59x = 549,434,365.93
  5. Step 5: Solve for x
    x = 549,434,365.93/20,316.59
  6. Step 6: Final answer
    x = 27,043.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.