Home / 28,464.72-39,283.56-16,531.80

Finding the Fourth Proportional to 28,464.72, 39,283.56 and 16,531.80

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Solution

The fourth proportional to 28,464.72, 39,283.56 and 16,531.80 is: 22,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.72 : 39,283.56 = 16,531.80 : x
  2. Step 2: Convert to fraction form
    28,464.72/39,283.56 = 16,531.80/x
  3. Step 3: Cross multiply
    28,464.72x = 39,283.56 × 16,531.80
  4. Step 4: Simplify right side
    28,464.72x = 649,427,957.21
  5. Step 5: Solve for x
    x = 649,427,957.21/28,464.72
  6. Step 6: Final answer
    x = 22,815.19

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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.