Home / 20,613.12-30,832.94-19,117.46

Finding the Fourth Proportional to 20,613.12, 30,832.94 and 19,117.46

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Solution

The fourth proportional to 20,613.12, 30,832.94 and 19,117.46 is: 28,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,613.12 : 30,832.94 = 19,117.46 : x
  2. Step 2: Convert to fraction form
    20,613.12/30,832.94 = 19,117.46/x
  3. Step 3: Cross multiply
    20,613.12x = 30,832.94 × 19,117.46
  4. Step 4: Simplify right side
    20,613.12x = 589,447,497.13
  5. Step 5: Solve for x
    x = 589,447,497.13/20,613.12
  6. Step 6: Final answer
    x = 28,595.74

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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.