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Finding the Fourth Proportional to 30,528.32, 45,813.04 and 10,806.80

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Solution

The fourth proportional to 30,528.32, 45,813.04 and 10,806.80 is: 16,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528.32 : 45,813.04 = 10,806.80 : x
  2. Step 2: Convert to fraction form
    30,528.32/45,813.04 = 10,806.80/x
  3. Step 3: Cross multiply
    30,528.32x = 45,813.04 × 10,806.80
  4. Step 4: Simplify right side
    30,528.32x = 495,092,360.67
  5. Step 5: Solve for x
    x = 495,092,360.67/30,528.32
  6. Step 6: Final answer
    x = 16,217.48

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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.