Home / 20,832.64-28,762.46-18,590.66

Finding the Fourth Proportional to 20,832.64, 28,762.46 and 18,590.66

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Solution

The fourth proportional to 20,832.64, 28,762.46 and 18,590.66 is: 25,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.64 : 28,762.46 = 18,590.66 : x
  2. Step 2: Convert to fraction form
    20,832.64/28,762.46 = 18,590.66/x
  3. Step 3: Cross multiply
    20,832.64x = 28,762.46 × 18,590.66
  4. Step 4: Simplify right side
    20,832.64x = 534,713,114.62
  5. Step 5: Solve for x
    x = 534,713,114.62/20,832.64
  6. Step 6: Final answer
    x = 25,667.08

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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.