Home / 20,031.93-30,047.94-18,814.05

Finding the Fourth Proportional to 20,031.93, 30,047.94 and 18,814.05

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Solution

The fourth proportional to 20,031.93, 30,047.94 and 18,814.05 is: 28,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.93 : 30,047.94 = 18,814.05 : x
  2. Step 2: Convert to fraction form
    20,031.93/30,047.94 = 18,814.05/x
  3. Step 3: Cross multiply
    20,031.93x = 30,047.94 × 18,814.05
  4. Step 4: Simplify right side
    20,031.93x = 565,323,445.56
  5. Step 5: Solve for x
    x = 565,323,445.56/20,031.93
  6. Step 6: Final answer
    x = 28,221.12

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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.