Home / 30,518.10-45,772.76-11,806.97

Finding the Fourth Proportional to 30,518.10, 45,772.76 and 11,806.97

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Solution

The fourth proportional to 30,518.10, 45,772.76 and 11,806.97 is: 17,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.10 : 45,772.76 = 11,806.97 : x
  2. Step 2: Convert to fraction form
    30,518.10/45,772.76 = 11,806.97/x
  3. Step 3: Cross multiply
    30,518.10x = 45,772.76 × 11,806.97
  4. Step 4: Simplify right side
    30,518.10x = 540,437,404.79
  5. Step 5: Solve for x
    x = 540,437,404.79/30,518.10
  6. Step 6: Final answer
    x = 17,708.75

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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.