Home / 36,431.51-54,639.97-10,129.19

Finding the Fourth Proportional to 36,431.51, 54,639.97 and 10,129.19

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Solution

The fourth proportional to 36,431.51, 54,639.97 and 10,129.19 is: 15,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,431.51 : 54,639.97 = 10,129.19 : x
  2. Step 2: Convert to fraction form
    36,431.51/54,639.97 = 10,129.19/x
  3. Step 3: Cross multiply
    36,431.51x = 54,639.97 × 10,129.19
  4. Step 4: Simplify right side
    36,431.51x = 553,458,339.20
  5. Step 5: Solve for x
    x = 553,458,339.20/36,431.51
  6. Step 6: Final answer
    x = 15,191.75

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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.