Home / 38,761.66-53,491.74-21,533.57

Finding the Fourth Proportional to 38,761.66, 53,491.74 and 21,533.57

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Solution

The fourth proportional to 38,761.66, 53,491.74 and 21,533.57 is: 29,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,761.66 : 53,491.74 = 21,533.57 : x
  2. Step 2: Convert to fraction form
    38,761.66/53,491.74 = 21,533.57/x
  3. Step 3: Cross multiply
    38,761.66x = 53,491.74 × 21,533.57
  4. Step 4: Simplify right side
    38,761.66x = 1,151,868,127.71
  5. Step 5: Solve for x
    x = 1,151,868,127.71/38,761.66
  6. Step 6: Final answer
    x = 29,716.69

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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.