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Finding the Fourth Proportional to 32,699.05, 45,113.08 and 21,375.08

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Solution

The fourth proportional to 32,699.05, 45,113.08 and 21,375.08 is: 29,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,699.05 : 45,113.08 = 21,375.08 : x
  2. Step 2: Convert to fraction form
    32,699.05/45,113.08 = 21,375.08/x
  3. Step 3: Cross multiply
    32,699.05x = 45,113.08 × 21,375.08
  4. Step 4: Simplify right side
    32,699.05x = 964,295,694.05
  5. Step 5: Solve for x
    x = 964,295,694.05/32,699.05
  6. Step 6: Final answer
    x = 29,490.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.