Home / 20,917.32-31,376.02-14,705.09

Finding the Fourth Proportional to 20,917.32, 31,376.02 and 14,705.09

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Solution

The fourth proportional to 20,917.32, 31,376.02 and 14,705.09 is: 22,057.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,917.32 : 31,376.02 = 14,705.09 : x
  2. Step 2: Convert to fraction form
    20,917.32/31,376.02 = 14,705.09/x
  3. Step 3: Cross multiply
    20,917.32x = 31,376.02 × 14,705.09
  4. Step 4: Simplify right side
    20,917.32x = 461,387,197.94
  5. Step 5: Solve for x
    x = 461,387,197.94/20,917.32
  6. Step 6: Final answer
    x = 22,057.66

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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.