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Finding the Fourth Proportional to 28,000.99, 41,999.14 and 9,274.91

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Solution

The fourth proportional to 28,000.99, 41,999.14 and 9,274.91 is: 13,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.99 : 41,999.14 = 9,274.91 : x
  2. Step 2: Convert to fraction form
    28,000.99/41,999.14 = 9,274.91/x
  3. Step 3: Cross multiply
    28,000.99x = 41,999.14 × 9,274.91
  4. Step 4: Simplify right side
    28,000.99x = 389,538,045.18
  5. Step 5: Solve for x
    x = 389,538,045.18/28,000.99
  6. Step 6: Final answer
    x = 13,911.58

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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.