Home / 28,252.50-38,989.67-15,677.25

Finding the Fourth Proportional to 28,252.50, 38,989.67 and 15,677.25

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Solution

The fourth proportional to 28,252.50, 38,989.67 and 15,677.25 is: 21,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.50 : 38,989.67 = 15,677.25 : x
  2. Step 2: Convert to fraction form
    28,252.50/38,989.67 = 15,677.25/x
  3. Step 3: Cross multiply
    28,252.50x = 38,989.67 × 15,677.25
  4. Step 4: Simplify right side
    28,252.50x = 611,250,725.62
  5. Step 5: Solve for x
    x = 611,250,725.62/28,252.50
  6. Step 6: Final answer
    x = 21,635.28

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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.