Home / 19,520.32-26,938.56-11,021.76

Finding the Fourth Proportional to 19,520.32, 26,938.56 and 11,021.76

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Solution

The fourth proportional to 19,520.32, 26,938.56 and 11,021.76 is: 15,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.32 : 26,938.56 = 11,021.76 : x
  2. Step 2: Convert to fraction form
    19,520.32/26,938.56 = 11,021.76/x
  3. Step 3: Cross multiply
    19,520.32x = 26,938.56 × 11,021.76
  4. Step 4: Simplify right side
    19,520.32x = 296,910,343.07
  5. Step 5: Solve for x
    x = 296,910,343.07/19,520.32
  6. Step 6: Final answer
    x = 15,210.32

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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.