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Finding the Fourth Proportional to 28,000.13, 42,001.02 and 7,223.63

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Solution

The fourth proportional to 28,000.13, 42,001.02 and 7,223.63 is: 10,835.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.13 : 42,001.02 = 7,223.63 : x
  2. Step 2: Convert to fraction form
    28,000.13/42,001.02 = 7,223.63/x
  3. Step 3: Cross multiply
    28,000.13x = 42,001.02 × 7,223.63
  4. Step 4: Simplify right side
    28,000.13x = 303,399,618.10
  5. Step 5: Solve for x
    x = 303,399,618.10/28,000.13
  6. Step 6: Final answer
    x = 10,835.65

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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.