Home / 40,172.96-55,369.51-26,720.18

Finding the Fourth Proportional to 40,172.96, 55,369.51 and 26,720.18

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Solution

The fourth proportional to 40,172.96, 55,369.51 and 26,720.18 is: 36,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.96 : 55,369.51 = 26,720.18 : x
  2. Step 2: Convert to fraction form
    40,172.96/55,369.51 = 26,720.18/x
  3. Step 3: Cross multiply
    40,172.96x = 55,369.51 × 26,720.18
  4. Step 4: Simplify right side
    40,172.96x = 1,479,483,137.70
  5. Step 5: Solve for x
    x = 1,479,483,137.70/40,172.96
  6. Step 6: Final answer
    x = 36,827.83

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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.