Home / 28,221.96-38,930.58-26,219.64

Finding the Fourth Proportional to 28,221.96, 38,930.58 and 26,219.64

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Solution

The fourth proportional to 28,221.96, 38,930.58 and 26,219.64 is: 36,168.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.96 : 38,930.58 = 26,219.64 : x
  2. Step 2: Convert to fraction form
    28,221.96/38,930.58 = 26,219.64/x
  3. Step 3: Cross multiply
    28,221.96x = 38,930.58 × 26,219.64
  4. Step 4: Simplify right side
    28,221.96x = 1,020,745,792.59
  5. Step 5: Solve for x
    x = 1,020,745,792.59/28,221.96
  6. Step 6: Final answer
    x = 36,168.49

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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.