Home / 28,013.40-38,662.38-16,080.48

Finding the Fourth Proportional to 28,013.40, 38,662.38 and 16,080.48

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Solution

The fourth proportional to 28,013.40, 38,662.38 and 16,080.48 is: 22,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.40 : 38,662.38 = 16,080.48 : x
  2. Step 2: Convert to fraction form
    28,013.40/38,662.38 = 16,080.48/x
  3. Step 3: Cross multiply
    28,013.40x = 38,662.38 × 16,080.48
  4. Step 4: Simplify right side
    28,013.40x = 621,709,628.34
  5. Step 5: Solve for x
    x = 621,709,628.34/28,013.40
  6. Step 6: Final answer
    x = 22,193.29

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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.