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Finding the Fourth Proportional to 30,196.71, 45,274.41 and 15,376.95

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Solution

The fourth proportional to 30,196.71, 45,274.41 and 15,376.95 is: 23,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,196.71 : 45,274.41 = 15,376.95 : x
  2. Step 2: Convert to fraction form
    30,196.71/45,274.41 = 15,376.95/x
  3. Step 3: Cross multiply
    30,196.71x = 45,274.41 × 15,376.95
  4. Step 4: Simplify right side
    30,196.71x = 696,182,338.85
  5. Step 5: Solve for x
    x = 696,182,338.85/30,196.71
  6. Step 6: Final answer
    x = 23,054.91

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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.