Home / 28,645.48-42,999.64-22,760.20

Finding the Fourth Proportional to 28,645.48, 42,999.64 and 22,760.20

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Solution

The fourth proportional to 28,645.48, 42,999.64 and 22,760.20 is: 34,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.48 : 42,999.64 = 22,760.20 : x
  2. Step 2: Convert to fraction form
    28,645.48/42,999.64 = 22,760.20/x
  3. Step 3: Cross multiply
    28,645.48x = 42,999.64 × 22,760.20
  4. Step 4: Simplify right side
    28,645.48x = 978,680,406.33
  5. Step 5: Solve for x
    x = 978,680,406.33/28,645.48
  6. Step 6: Final answer
    x = 34,165.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.