Home / 28,884.66-39,856.89-16,136.28

Finding the Fourth Proportional to 28,884.66, 39,856.89 and 16,136.28

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Solution

The fourth proportional to 28,884.66, 39,856.89 and 16,136.28 is: 22,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.66 : 39,856.89 = 16,136.28 : x
  2. Step 2: Convert to fraction form
    28,884.66/39,856.89 = 16,136.28/x
  3. Step 3: Cross multiply
    28,884.66x = 39,856.89 × 16,136.28
  4. Step 4: Simplify right side
    28,884.66x = 643,141,693.18
  5. Step 5: Solve for x
    x = 643,141,693.18/28,884.66
  6. Step 6: Final answer
    x = 22,265.85

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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.