Home / 31,717.35-47,557.58-11,997.45

Finding the Fourth Proportional to 31,717.35, 47,557.58 and 11,997.45

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Solution

The fourth proportional to 31,717.35, 47,557.58 and 11,997.45 is: 17,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.35 : 47,557.58 = 11,997.45 : x
  2. Step 2: Convert to fraction form
    31,717.35/47,557.58 = 11,997.45/x
  3. Step 3: Cross multiply
    31,717.35x = 47,557.58 × 11,997.45
  4. Step 4: Simplify right side
    31,717.35x = 570,569,628.18
  5. Step 5: Solve for x
    x = 570,569,628.18/31,717.35
  6. Step 6: Final answer
    x = 17,989.20

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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.