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Finding the Fourth Proportional to 40,513.70, 60,770.28 and 21,802.54

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Solution

The fourth proportional to 40,513.70, 60,770.28 and 21,802.54 is: 32,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,513.70 : 60,770.28 = 21,802.54 : x
  2. Step 2: Convert to fraction form
    40,513.70/60,770.28 = 21,802.54/x
  3. Step 3: Cross multiply
    40,513.70x = 60,770.28 × 21,802.54
  4. Step 4: Simplify right side
    40,513.70x = 1,324,946,460.51
  5. Step 5: Solve for x
    x = 1,324,946,460.51/40,513.70
  6. Step 6: Final answer
    x = 32,703.66

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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.