Home / 34,178.55-47,147.45-20,028.66

Finding the Fourth Proportional to 34,178.55, 47,147.45 and 20,028.66

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Solution

The fourth proportional to 34,178.55, 47,147.45 and 20,028.66 is: 27,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,178.55 : 47,147.45 = 20,028.66 : x
  2. Step 2: Convert to fraction form
    34,178.55/47,147.45 = 20,028.66/x
  3. Step 3: Cross multiply
    34,178.55x = 47,147.45 × 20,028.66
  4. Step 4: Simplify right side
    34,178.55x = 944,300,145.77
  5. Step 5: Solve for x
    x = 944,300,145.77/34,178.55
  6. Step 6: Final answer
    x = 27,628.44

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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.