Home / 22,231.16-30,679.98-12,802.76

Finding the Fourth Proportional to 22,231.16, 30,679.98 and 12,802.76

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Solution

The fourth proportional to 22,231.16, 30,679.98 and 12,802.76 is: 17,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.16 : 30,679.98 = 12,802.76 : x
  2. Step 2: Convert to fraction form
    22,231.16/30,679.98 = 12,802.76/x
  3. Step 3: Cross multiply
    22,231.16x = 30,679.98 × 12,802.76
  4. Step 4: Simplify right side
    22,231.16x = 392,788,406.40
  5. Step 5: Solve for x
    x = 392,788,406.40/22,231.16
  6. Step 6: Final answer
    x = 17,668.37

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Half scale
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Double scale
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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.