Home / 28,407.44-39,205.40-16,470.64

Finding the Fourth Proportional to 28,407.44, 39,205.40 and 16,470.64

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Solution

The fourth proportional to 28,407.44, 39,205.40 and 16,470.64 is: 22,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.44 : 39,205.40 = 16,470.64 : x
  2. Step 2: Convert to fraction form
    28,407.44/39,205.40 = 16,470.64/x
  3. Step 3: Cross multiply
    28,407.44x = 39,205.40 × 16,470.64
  4. Step 4: Simplify right side
    28,407.44x = 645,738,029.46
  5. Step 5: Solve for x
    x = 645,738,029.46/28,407.44
  6. Step 6: Final answer
    x = 22,731.30

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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.