Home / 55,365.72-82,999.20-20,297.20

Finding the Fourth Proportional to 55,365.72, 82,999.20 and 20,297.20

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Solution

The fourth proportional to 55,365.72, 82,999.20 and 20,297.20 is: 30,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,365.72 : 82,999.20 = 20,297.20 : x
  2. Step 2: Convert to fraction form
    55,365.72/82,999.20 = 20,297.20/x
  3. Step 3: Cross multiply
    55,365.72x = 82,999.20 × 20,297.20
  4. Step 4: Simplify right side
    55,365.72x = 1,684,651,362.24
  5. Step 5: Solve for x
    x = 1,684,651,362.24/55,365.72
  6. Step 6: Final answer
    x = 30,427.70

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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.