Home / 27,615.94-38,110.10-15,040.69

Finding the Fourth Proportional to 27,615.94, 38,110.10 and 15,040.69

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Solution

The fourth proportional to 27,615.94, 38,110.10 and 15,040.69 is: 20,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.94 : 38,110.10 = 15,040.69 : x
  2. Step 2: Convert to fraction form
    27,615.94/38,110.10 = 15,040.69/x
  3. Step 3: Cross multiply
    27,615.94x = 38,110.10 × 15,040.69
  4. Step 4: Simplify right side
    27,615.94x = 573,202,029.49
  5. Step 5: Solve for x
    x = 573,202,029.49/27,615.94
  6. Step 6: Final answer
    x = 20,756.20

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Half scale
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Double scale
Find fourth proportional to 27,616.94, 38,111.48 and 15,041.69
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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.