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Finding the Fourth Proportional to 30,035.78, 45,060.13 and 8,977.53

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Solution

The fourth proportional to 30,035.78, 45,060.13 and 8,977.53 is: 13,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,035.78 : 45,060.13 = 8,977.53 : x
  2. Step 2: Convert to fraction form
    30,035.78/45,060.13 = 8,977.53/x
  3. Step 3: Cross multiply
    30,035.78x = 45,060.13 × 8,977.53
  4. Step 4: Simplify right side
    30,035.78x = 404,528,668.88
  5. Step 5: Solve for x
    x = 404,528,668.88/30,035.78
  6. Step 6: Final answer
    x = 13,468.23

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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.