Home / 34,733.14-47,928.90-20,391.46

Finding the Fourth Proportional to 34,733.14, 47,928.90 and 20,391.46

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Solution

The fourth proportional to 34,733.14, 47,928.90 and 20,391.46 is: 28,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,733.14 : 47,928.90 = 20,391.46 : x
  2. Step 2: Convert to fraction form
    34,733.14/47,928.90 = 20,391.46/x
  3. Step 3: Cross multiply
    34,733.14x = 47,928.90 × 20,391.46
  4. Step 4: Simplify right side
    34,733.14x = 977,340,247.19
  5. Step 5: Solve for x
    x = 977,340,247.19/34,733.14
  6. Step 6: Final answer
    x = 28,138.55

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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.