Home / 40,697.79-61,055.46-12,617.28

Finding the Fourth Proportional to 40,697.79, 61,055.46 and 12,617.28

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Solution

The fourth proportional to 40,697.79, 61,055.46 and 12,617.28 is: 18,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,697.79 : 61,055.46 = 12,617.28 : x
  2. Step 2: Convert to fraction form
    40,697.79/61,055.46 = 12,617.28/x
  3. Step 3: Cross multiply
    40,697.79x = 61,055.46 × 12,617.28
  4. Step 4: Simplify right side
    40,697.79x = 770,353,902.46
  5. Step 5: Solve for x
    x = 770,353,902.46/40,697.79
  6. Step 6: Final answer
    x = 18,928.64

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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.