Home / 28,889.24-39,866.68-16,142.60

Finding the Fourth Proportional to 28,889.24, 39,866.68 and 16,142.60

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Solution

The fourth proportional to 28,889.24, 39,866.68 and 16,142.60 is: 22,276.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.24 : 39,866.68 = 16,142.60 : x
  2. Step 2: Convert to fraction form
    28,889.24/39,866.68 = 16,142.60/x
  3. Step 3: Cross multiply
    28,889.24x = 39,866.68 × 16,142.60
  4. Step 4: Simplify right side
    28,889.24x = 643,551,868.57
  5. Step 5: Solve for x
    x = 643,551,868.57/28,889.24
  6. Step 6: Final answer
    x = 22,276.52

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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.