Home / 28,016.10-38,645.37-22,038.30

Finding the Fourth Proportional to 28,016.10, 38,645.37 and 22,038.30

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Solution

The fourth proportional to 28,016.10, 38,645.37 and 22,038.30 is: 30,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.10 : 38,645.37 = 22,038.30 : x
  2. Step 2: Convert to fraction form
    28,016.10/38,645.37 = 22,038.30/x
  3. Step 3: Cross multiply
    28,016.10x = 38,645.37 × 22,038.30
  4. Step 4: Simplify right side
    28,016.10x = 851,678,257.67
  5. Step 5: Solve for x
    x = 851,678,257.67/28,016.10
  6. Step 6: Final answer
    x = 30,399.60

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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.