Home / 25,515.47-38,279.66-18,033.74

Finding the Fourth Proportional to 25,515.47, 38,279.66 and 18,033.74

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Solution

The fourth proportional to 25,515.47, 38,279.66 and 18,033.74 is: 27,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.47 : 38,279.66 = 18,033.74 : x
  2. Step 2: Convert to fraction form
    25,515.47/38,279.66 = 18,033.74/x
  3. Step 3: Cross multiply
    25,515.47x = 38,279.66 × 18,033.74
  4. Step 4: Simplify right side
    25,515.47x = 690,325,576.51
  5. Step 5: Solve for x
    x = 690,325,576.51/25,515.47
  6. Step 6: Final answer
    x = 27,055.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.