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Finding the Fourth Proportional to 30,243.68, 45,372.95 and 10,522.40

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Solution

The fourth proportional to 30,243.68, 45,372.95 and 10,522.40 is: 15,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.68 : 45,372.95 = 10,522.40 : x
  2. Step 2: Convert to fraction form
    30,243.68/45,372.95 = 10,522.40/x
  3. Step 3: Cross multiply
    30,243.68x = 45,372.95 × 10,522.40
  4. Step 4: Simplify right side
    30,243.68x = 477,432,468.82
  5. Step 5: Solve for x
    x = 477,432,468.82/30,243.68
  6. Step 6: Final answer
    x = 15,786.19

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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.