Home / 28,871.19-39,838.23-16,122.60

Finding the Fourth Proportional to 28,871.19, 39,838.23 and 16,122.60

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Solution

The fourth proportional to 28,871.19, 39,838.23 and 16,122.60 is: 22,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.19 : 39,838.23 = 16,122.60 : x
  2. Step 2: Convert to fraction form
    28,871.19/39,838.23 = 16,122.60/x
  3. Step 3: Cross multiply
    28,871.19x = 39,838.23 × 16,122.60
  4. Step 4: Simplify right side
    28,871.19x = 642,295,847.00
  5. Step 5: Solve for x
    x = 642,295,847.00/28,871.19
  6. Step 6: Final answer
    x = 22,246.95

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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.