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Finding the Fourth Proportional to 30,328.68, 45,483.84 and 10,603.56

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Solution

The fourth proportional to 30,328.68, 45,483.84 and 10,603.56 is: 15,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328.68 : 45,483.84 = 10,603.56 : x
  2. Step 2: Convert to fraction form
    30,328.68/45,483.84 = 10,603.56/x
  3. Step 3: Cross multiply
    30,328.68x = 45,483.84 × 10,603.56
  4. Step 4: Simplify right side
    30,328.68x = 482,290,626.47
  5. Step 5: Solve for x
    x = 482,290,626.47/30,328.68
  6. Step 6: Final answer
    x = 15,902.13

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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.