Home / 28,476.24-42,717.78-11,847.53

Finding the Fourth Proportional to 28,476.24, 42,717.78 and 11,847.53

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Solution

The fourth proportional to 28,476.24, 42,717.78 and 11,847.53 is: 17,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.24 : 42,717.78 = 11,847.53 : x
  2. Step 2: Convert to fraction form
    28,476.24/42,717.78 = 11,847.53/x
  3. Step 3: Cross multiply
    28,476.24x = 42,717.78 × 11,847.53
  4. Step 4: Simplify right side
    28,476.24x = 506,099,966.49
  5. Step 5: Solve for x
    x = 506,099,966.49/28,476.24
  6. Step 6: Final answer
    x = 17,772.71

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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.