Home / 34,715.90-47,908.12-18,800.42

Finding the Fourth Proportional to 34,715.90, 47,908.12 and 18,800.42

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Solution

The fourth proportional to 34,715.90, 47,908.12 and 18,800.42 is: 25,944.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,715.90 : 47,908.12 = 18,800.42 : x
  2. Step 2: Convert to fraction form
    34,715.90/47,908.12 = 18,800.42/x
  3. Step 3: Cross multiply
    34,715.90x = 47,908.12 × 18,800.42
  4. Step 4: Simplify right side
    34,715.90x = 900,692,537.87
  5. Step 5: Solve for x
    x = 900,692,537.87/34,715.90
  6. Step 6: Final answer
    x = 25,944.67

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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.