Home / 38,491.14-53,117.25-21,495.66

Finding the Fourth Proportional to 38,491.14, 53,117.25 and 21,495.66

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Solution

The fourth proportional to 38,491.14, 53,117.25 and 21,495.66 is: 29,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491.14 : 53,117.25 = 21,495.66 : x
  2. Step 2: Convert to fraction form
    38,491.14/53,117.25 = 21,495.66/x
  3. Step 3: Cross multiply
    38,491.14x = 53,117.25 × 21,495.66
  4. Step 4: Simplify right side
    38,491.14x = 1,141,790,346.14
  5. Step 5: Solve for x
    x = 1,141,790,346.14/38,491.14
  6. Step 6: Final answer
    x = 29,663.72

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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.