Home / 34,536.42-47,660.33-20,390.18

Finding the Fourth Proportional to 34,536.42, 47,660.33 and 20,390.18

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Solution

The fourth proportional to 34,536.42, 47,660.33 and 20,390.18 is: 28,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,536.42 : 47,660.33 = 20,390.18 : x
  2. Step 2: Convert to fraction form
    34,536.42/47,660.33 = 20,390.18/x
  3. Step 3: Cross multiply
    34,536.42x = 47,660.33 × 20,390.18
  4. Step 4: Simplify right side
    34,536.42x = 971,802,520.23
  5. Step 5: Solve for x
    x = 971,802,520.23/34,536.42
  6. Step 6: Final answer
    x = 28,138.48

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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.