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Finding the Fourth Proportional to 26,955.42, 40,372.95 and 20,669.13

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Solution

The fourth proportional to 26,955.42, 40,372.95 and 20,669.13 is: 30,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,955.42 : 40,372.95 = 20,669.13 : x
  2. Step 2: Convert to fraction form
    26,955.42/40,372.95 = 20,669.13/x
  3. Step 3: Cross multiply
    26,955.42x = 40,372.95 × 20,669.13
  4. Step 4: Simplify right side
    26,955.42x = 834,473,752.03
  5. Step 5: Solve for x
    x = 834,473,752.03/26,955.42
  6. Step 6: Final answer
    x = 30,957.55

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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.