Home / 27,540.09-38,003.18-15,605.30

Finding the Fourth Proportional to 27,540.09, 38,003.18 and 15,605.30

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Solution

The fourth proportional to 27,540.09, 38,003.18 and 15,605.30 is: 21,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,540.09 : 38,003.18 = 15,605.30 : x
  2. Step 2: Convert to fraction form
    27,540.09/38,003.18 = 15,605.30/x
  3. Step 3: Cross multiply
    27,540.09x = 38,003.18 × 15,605.30
  4. Step 4: Simplify right side
    27,540.09x = 593,050,756.81
  5. Step 5: Solve for x
    x = 593,050,756.81/27,540.09
  6. Step 6: Final answer
    x = 21,534.09

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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.