Home / 34,154.68-47,128.74-20,011.96

Finding the Fourth Proportional to 34,154.68, 47,128.74 and 20,011.96

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Solution

The fourth proportional to 34,154.68, 47,128.74 and 20,011.96 is: 27,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,154.68 : 47,128.74 = 20,011.96 : x
  2. Step 2: Convert to fraction form
    34,154.68/47,128.74 = 20,011.96/x
  3. Step 3: Cross multiply
    34,154.68x = 47,128.74 × 20,011.96
  4. Step 4: Simplify right side
    34,154.68x = 943,138,459.73
  5. Step 5: Solve for x
    x = 943,138,459.73/34,154.68
  6. Step 6: Final answer
    x = 27,613.74

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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.