Home / 40,681.84-60,912.63-28,786.72

Finding the Fourth Proportional to 40,681.84, 60,912.63 and 28,786.72

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Solution

The fourth proportional to 40,681.84, 60,912.63 and 28,786.72 is: 43,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,681.84 : 60,912.63 = 28,786.72 : x
  2. Step 2: Convert to fraction form
    40,681.84/60,912.63 = 28,786.72/x
  3. Step 3: Cross multiply
    40,681.84x = 60,912.63 × 28,786.72
  4. Step 4: Simplify right side
    40,681.84x = 1,753,474,824.27
  5. Step 5: Solve for x
    x = 1,753,474,824.27/40,681.84
  6. Step 6: Final answer
    x = 43,102.15

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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.