Home / 27,431.73-37,856.57-15,495.57

Finding the Fourth Proportional to 27,431.73, 37,856.57 and 15,495.57

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Solution

The fourth proportional to 27,431.73, 37,856.57 and 15,495.57 is: 21,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.73 : 37,856.57 = 15,495.57 : x
  2. Step 2: Convert to fraction form
    27,431.73/37,856.57 = 15,495.57/x
  3. Step 3: Cross multiply
    27,431.73x = 37,856.57 × 15,495.57
  4. Step 4: Simplify right side
    27,431.73x = 586,609,052.92
  5. Step 5: Solve for x
    x = 586,609,052.92/27,431.73
  6. Step 6: Final answer
    x = 21,384.33

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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.