Home / 28,016.32-38,680.52-17,420.36

Finding the Fourth Proportional to 28,016.32, 38,680.52 and 17,420.36

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Solution

The fourth proportional to 28,016.32, 38,680.52 and 17,420.36 is: 24,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.32 : 38,680.52 = 17,420.36 : x
  2. Step 2: Convert to fraction form
    28,016.32/38,680.52 = 17,420.36/x
  3. Step 3: Cross multiply
    28,016.32x = 38,680.52 × 17,420.36
  4. Step 4: Simplify right side
    28,016.32x = 673,828,583.39
  5. Step 5: Solve for x
    x = 673,828,583.39/28,016.32
  6. Step 6: Final answer
    x = 24,051.29

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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.