Home / 30,890.87-45,938.91-29,906.72

Finding the Fourth Proportional to 30,890.87, 45,938.91 and 29,906.72

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Solution

The fourth proportional to 30,890.87, 45,938.91 and 29,906.72 is: 44,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.87 : 45,938.91 = 29,906.72 : x
  2. Step 2: Convert to fraction form
    30,890.87/45,938.91 = 29,906.72/x
  3. Step 3: Cross multiply
    30,890.87x = 45,938.91 × 29,906.72
  4. Step 4: Simplify right side
    30,890.87x = 1,373,882,118.48
  5. Step 5: Solve for x
    x = 1,373,882,118.48/30,890.87
  6. Step 6: Final answer
    x = 44,475.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.