Home / 28,757.56-39,685.50-16,182.31

Finding the Fourth Proportional to 28,757.56, 39,685.50 and 16,182.31

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Solution

The fourth proportional to 28,757.56, 39,685.50 and 16,182.31 is: 22,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.56 : 39,685.50 = 16,182.31 : x
  2. Step 2: Convert to fraction form
    28,757.56/39,685.50 = 16,182.31/x
  3. Step 3: Cross multiply
    28,757.56x = 39,685.50 × 16,182.31
  4. Step 4: Simplify right side
    28,757.56x = 642,203,063.51
  5. Step 5: Solve for x
    x = 642,203,063.51/28,757.56
  6. Step 6: Final answer
    x = 22,331.63

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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.