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Finding the Fourth Proportional to 28,110.71, 42,166.02 and 7,334.21

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Solution

The fourth proportional to 28,110.71, 42,166.02 and 7,334.21 is: 11,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.71 : 42,166.02 = 7,334.21 : x
  2. Step 2: Convert to fraction form
    28,110.71/42,166.02 = 7,334.21/x
  3. Step 3: Cross multiply
    28,110.71x = 42,166.02 × 7,334.21
  4. Step 4: Simplify right side
    28,110.71x = 309,254,445.54
  5. Step 5: Solve for x
    x = 309,254,445.54/28,110.71
  6. Step 6: Final answer
    x = 11,001.30

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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.