Home / 25,218.21-34,790.69-15,007.20

Finding the Fourth Proportional to 25,218.21, 34,790.69 and 15,007.20

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Solution

The fourth proportional to 25,218.21, 34,790.69 and 15,007.20 is: 20,703.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,218.21 : 34,790.69 = 15,007.20 : x
  2. Step 2: Convert to fraction form
    25,218.21/34,790.69 = 15,007.20/x
  3. Step 3: Cross multiply
    25,218.21x = 34,790.69 × 15,007.20
  4. Step 4: Simplify right side
    25,218.21x = 522,110,767.93
  5. Step 5: Solve for x
    x = 522,110,767.93/25,218.21
  6. Step 6: Final answer
    x = 20,703.72

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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.