Home / 20,832.70-28,762.55-18,590.73

Finding the Fourth Proportional to 20,832.70, 28,762.55 and 18,590.73

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Solution

The fourth proportional to 20,832.70, 28,762.55 and 18,590.73 is: 25,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.70 : 28,762.55 = 18,590.73 : x
  2. Step 2: Convert to fraction form
    20,832.70/28,762.55 = 18,590.73/x
  3. Step 3: Cross multiply
    20,832.70x = 28,762.55 × 18,590.73
  4. Step 4: Simplify right side
    20,832.70x = 534,716,801.16
  5. Step 5: Solve for x
    x = 534,716,801.16/20,832.70
  6. Step 6: Final answer
    x = 25,667.19

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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.