Home / 20,837.15-31,219.28-17,349.58

Finding the Fourth Proportional to 20,837.15, 31,219.28 and 17,349.58

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Solution

The fourth proportional to 20,837.15, 31,219.28 and 17,349.58 is: 25,994.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.15 : 31,219.28 = 17,349.58 : x
  2. Step 2: Convert to fraction form
    20,837.15/31,219.28 = 17,349.58/x
  3. Step 3: Cross multiply
    20,837.15x = 31,219.28 × 17,349.58
  4. Step 4: Simplify right side
    20,837.15x = 541,641,153.06
  5. Step 5: Solve for x
    x = 541,641,153.06/20,837.15
  6. Step 6: Final answer
    x = 25,994.02

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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.