Home / 25,731.20-35,509.69-14,400.61

Finding the Fourth Proportional to 25,731.20, 35,509.69 and 14,400.61

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Solution

The fourth proportional to 25,731.20, 35,509.69 and 14,400.61 is: 19,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.20 : 35,509.69 = 14,400.61 : x
  2. Step 2: Convert to fraction form
    25,731.20/35,509.69 = 14,400.61/x
  3. Step 3: Cross multiply
    25,731.20x = 35,509.69 × 14,400.61
  4. Step 4: Simplify right side
    25,731.20x = 511,361,019.36
  5. Step 5: Solve for x
    x = 511,361,019.36/25,731.20
  6. Step 6: Final answer
    x = 19,873.19

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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.