Home / 20,881.58-31,337.73-15,349.86

Finding the Fourth Proportional to 20,881.58, 31,337.73 and 15,349.86

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Solution

The fourth proportional to 20,881.58, 31,337.73 and 15,349.86 is: 23,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881.58 : 31,337.73 = 15,349.86 : x
  2. Step 2: Convert to fraction form
    20,881.58/31,337.73 = 15,349.86/x
  3. Step 3: Cross multiply
    20,881.58x = 31,337.73 × 15,349.86
  4. Step 4: Simplify right side
    20,881.58x = 481,029,768.22
  5. Step 5: Solve for x
    x = 481,029,768.22/20,881.58
  6. Step 6: Final answer
    x = 23,036.09

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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.