Home / 20,317.44-28,037.55-11,365.32

Finding the Fourth Proportional to 20,317.44, 28,037.55 and 11,365.32

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Solution

The fourth proportional to 20,317.44, 28,037.55 and 11,365.32 is: 15,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.44 : 28,037.55 = 11,365.32 : x
  2. Step 2: Convert to fraction form
    20,317.44/28,037.55 = 11,365.32/x
  3. Step 3: Cross multiply
    20,317.44x = 28,037.55 × 11,365.32
  4. Step 4: Simplify right side
    20,317.44x = 318,655,727.77
  5. Step 5: Solve for x
    x = 318,655,727.77/20,317.44
  6. Step 6: Final answer
    x = 15,683.85

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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.