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Finding the Fourth Proportional to 32,769, 45,221.22 and 18,622.76

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Solution

The fourth proportional to 32,769, 45,221.22 and 18,622.76 is: 25,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,769 : 45,221.22 = 18,622.76 : x
  2. Step 2: Convert to fraction form
    32,769/45,221.22 = 18,622.76/x
  3. Step 3: Cross multiply
    32,769x = 45,221.22 × 18,622.76
  4. Step 4: Simplify right side
    32,769x = 842,143,700.86
  5. Step 5: Solve for x
    x = 842,143,700.86/32,769
  6. Step 6: Final answer
    x = 25,699.40

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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.