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Finding the Fourth Proportional to 30,488.88, 45,733.33 and 20,098.20

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Solution

The fourth proportional to 30,488.88, 45,733.33 and 20,098.20 is: 30,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.88 : 45,733.33 = 20,098.20 : x
  2. Step 2: Convert to fraction form
    30,488.88/45,733.33 = 20,098.20/x
  3. Step 3: Cross multiply
    30,488.88x = 45,733.33 × 20,098.20
  4. Step 4: Simplify right side
    30,488.88x = 919,157,696.58
  5. Step 5: Solve for x
    x = 919,157,696.58/30,488.88
  6. Step 6: Final answer
    x = 30,147.31

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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.