Home / 28,409.61-39,205.41-16,480.02

Finding the Fourth Proportional to 28,409.61, 39,205.41 and 16,480.02

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Solution

The fourth proportional to 28,409.61, 39,205.41 and 16,480.02 is: 22,742.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.61 : 39,205.41 = 16,480.02 : x
  2. Step 2: Convert to fraction form
    28,409.61/39,205.41 = 16,480.02/x
  3. Step 3: Cross multiply
    28,409.61x = 39,205.41 × 16,480.02
  4. Step 4: Simplify right side
    28,409.61x = 646,105,940.91
  5. Step 5: Solve for x
    x = 646,105,940.91/28,409.61
  6. Step 6: Final answer
    x = 22,742.51

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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.