Home / 27,515.15-37,971.29-15,578.23

Finding the Fourth Proportional to 27,515.15, 37,971.29 and 15,578.23

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Solution

The fourth proportional to 27,515.15, 37,971.29 and 15,578.23 is: 21,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.15 : 37,971.29 = 15,578.23 : x
  2. Step 2: Convert to fraction form
    27,515.15/37,971.29 = 15,578.23/x
  3. Step 3: Cross multiply
    27,515.15x = 37,971.29 × 15,578.23
  4. Step 4: Simplify right side
    27,515.15x = 591,525,489.02
  5. Step 5: Solve for x
    x = 591,525,489.02/27,515.15
  6. Step 6: Final answer
    x = 21,498.17

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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.