Home / 27,661.06-38,172.20-15,085.81

Finding the Fourth Proportional to 27,661.06, 38,172.20 and 15,085.81

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Solution

The fourth proportional to 27,661.06, 38,172.20 and 15,085.81 is: 20,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.06 : 38,172.20 = 15,085.81 : x
  2. Step 2: Convert to fraction form
    27,661.06/38,172.20 = 15,085.81/x
  3. Step 3: Cross multiply
    27,661.06x = 38,172.20 × 15,085.81
  4. Step 4: Simplify right side
    27,661.06x = 575,858,528.77
  5. Step 5: Solve for x
    x = 575,858,528.77/27,661.06
  6. Step 6: Final answer
    x = 20,818.38

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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.