Home / 30,620.73-45,931.56-10,898.78

Finding the Fourth Proportional to 30,620.73, 45,931.56 and 10,898.78

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Solution

The fourth proportional to 30,620.73, 45,931.56 and 10,898.78 is: 16,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.73 : 45,931.56 = 10,898.78 : x
  2. Step 2: Convert to fraction form
    30,620.73/45,931.56 = 10,898.78/x
  3. Step 3: Cross multiply
    30,620.73x = 45,931.56 × 10,898.78
  4. Step 4: Simplify right side
    30,620.73x = 500,597,826.15
  5. Step 5: Solve for x
    x = 500,597,826.15/30,620.73
  6. Step 6: Final answer
    x = 16,348.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.