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Finding the Fourth Proportional to 30,476.82, 45,718.20 and 10,754.40

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Solution

The fourth proportional to 30,476.82, 45,718.20 and 10,754.40 is: 16,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.82 : 45,718.20 = 10,754.40 : x
  2. Step 2: Convert to fraction form
    30,476.82/45,718.20 = 10,754.40/x
  3. Step 3: Cross multiply
    30,476.82x = 45,718.20 × 10,754.40
  4. Step 4: Simplify right side
    30,476.82x = 491,671,810.08
  5. Step 5: Solve for x
    x = 491,671,810.08/30,476.82
  6. Step 6: Final answer
    x = 16,132.65

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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.