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Finding the Fourth Proportional to 30,307.64, 45,472.41 and 15,523.52

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Solution

The fourth proportional to 30,307.64, 45,472.41 and 15,523.52 is: 23,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.64 : 45,472.41 = 15,523.52 : x
  2. Step 2: Convert to fraction form
    30,307.64/45,472.41 = 15,523.52/x
  3. Step 3: Cross multiply
    30,307.64x = 45,472.41 × 15,523.52
  4. Step 4: Simplify right side
    30,307.64x = 705,891,638.72
  5. Step 5: Solve for x
    x = 705,891,638.72/30,307.64
  6. Step 6: Final answer
    x = 23,290.88

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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.