Home / 20,349.08-30,523.32-12,345.75

Finding the Fourth Proportional to 20,349.08, 30,523.32 and 12,345.75

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Solution

The fourth proportional to 20,349.08, 30,523.32 and 12,345.75 is: 18,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.08 : 30,523.32 = 12,345.75 : x
  2. Step 2: Convert to fraction form
    20,349.08/30,523.32 = 12,345.75/x
  3. Step 3: Cross multiply
    20,349.08x = 30,523.32 × 12,345.75
  4. Step 4: Simplify right side
    20,349.08x = 376,833,277.89
  5. Step 5: Solve for x
    x = 376,833,277.89/20,349.08
  6. Step 6: Final answer
    x = 18,518.44

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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.