Home / 34,221.36-47,225.76-19,687.76

Finding the Fourth Proportional to 34,221.36, 47,225.76 and 19,687.76

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Solution

The fourth proportional to 34,221.36, 47,225.76 and 19,687.76 is: 27,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,221.36 : 47,225.76 = 19,687.76 : x
  2. Step 2: Convert to fraction form
    34,221.36/47,225.76 = 19,687.76/x
  3. Step 3: Cross multiply
    34,221.36x = 47,225.76 × 19,687.76
  4. Step 4: Simplify right side
    34,221.36x = 929,769,428.70
  5. Step 5: Solve for x
    x = 929,769,428.70/34,221.36
  6. Step 6: Final answer
    x = 27,169.27

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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.