Home / 27,515.19-37,971.79-15,578.22

Finding the Fourth Proportional to 27,515.19, 37,971.79 and 15,578.22

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Solution

The fourth proportional to 27,515.19, 37,971.79 and 15,578.22 is: 21,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.19 : 37,971.79 = 15,578.22 : x
  2. Step 2: Convert to fraction form
    27,515.19/37,971.79 = 15,578.22/x
  3. Step 3: Cross multiply
    27,515.19x = 37,971.79 × 15,578.22
  4. Step 4: Simplify right side
    27,515.19x = 591,533,001.86
  5. Step 5: Solve for x
    x = 591,533,001.86/27,515.19
  6. Step 6: Final answer
    x = 21,498.41

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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.