Home / 23,136.84-31,928.56-13,705.56

Finding the Fourth Proportional to 23,136.84, 31,928.56 and 13,705.56

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Solution

The fourth proportional to 23,136.84, 31,928.56 and 13,705.56 is: 18,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,136.84 : 31,928.56 = 13,705.56 : x
  2. Step 2: Convert to fraction form
    23,136.84/31,928.56 = 13,705.56/x
  3. Step 3: Cross multiply
    23,136.84x = 31,928.56 × 13,705.56
  4. Step 4: Simplify right side
    23,136.84x = 437,598,794.79
  5. Step 5: Solve for x
    x = 437,598,794.79/23,136.84
  6. Step 6: Final answer
    x = 18,913.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.