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Finding the Fourth Proportional to 30,455.61, 45,702.86 and 11,750.73

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Solution

The fourth proportional to 30,455.61, 45,702.86 and 11,750.73 is: 17,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.61 : 45,702.86 = 11,750.73 : x
  2. Step 2: Convert to fraction form
    30,455.61/45,702.86 = 11,750.73/x
  3. Step 3: Cross multiply
    30,455.61x = 45,702.86 × 11,750.73
  4. Step 4: Simplify right side
    30,455.61x = 537,041,909.33
  5. Step 5: Solve for x
    x = 537,041,909.33/30,455.61
  6. Step 6: Final answer
    x = 17,633.60

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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.