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Finding the Fourth Proportional to 32,645, 45,059.72 and 21,316.26

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Solution

The fourth proportional to 32,645, 45,059.72 and 21,316.26 is: 29,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,645 : 45,059.72 = 21,316.26 : x
  2. Step 2: Convert to fraction form
    32,645/45,059.72 = 21,316.26/x
  3. Step 3: Cross multiply
    32,645x = 45,059.72 × 21,316.26
  4. Step 4: Simplify right side
    32,645x = 960,504,707.05
  5. Step 5: Solve for x
    x = 960,504,707.05/32,645
  6. Step 6: Final answer
    x = 29,422.72

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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.