Home / 28,261.44-39,007.88-16,331.72

Finding the Fourth Proportional to 28,261.44, 39,007.88 and 16,331.72

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Solution

The fourth proportional to 28,261.44, 39,007.88 and 16,331.72 is: 22,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.44 : 39,007.88 = 16,331.72 : x
  2. Step 2: Convert to fraction form
    28,261.44/39,007.88 = 16,331.72/x
  3. Step 3: Cross multiply
    28,261.44x = 39,007.88 × 16,331.72
  4. Step 4: Simplify right side
    28,261.44x = 637,065,773.95
  5. Step 5: Solve for x
    x = 637,065,773.95/28,261.44
  6. Step 6: Final answer
    x = 22,541.87

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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.