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Finding the Fourth Proportional to 30,372.84, 45,542.25 and 10,643.67

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Solution

The fourth proportional to 30,372.84, 45,542.25 and 10,643.67 is: 15,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.84 : 45,542.25 = 10,643.67 : x
  2. Step 2: Convert to fraction form
    30,372.84/45,542.25 = 10,643.67/x
  3. Step 3: Cross multiply
    30,372.84x = 45,542.25 × 10,643.67
  4. Step 4: Simplify right side
    30,372.84x = 484,736,680.06
  5. Step 5: Solve for x
    x = 484,736,680.06/30,372.84
  6. Step 6: Final answer
    x = 15,959.54

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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.