Home / 25,319.94-34,939.72-13,989.32

Finding the Fourth Proportional to 25,319.94, 34,939.72 and 13,989.32

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Solution

The fourth proportional to 25,319.94, 34,939.72 and 13,989.32 is: 19,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.94 : 34,939.72 = 13,989.32 : x
  2. Step 2: Convert to fraction form
    25,319.94/34,939.72 = 13,989.32/x
  3. Step 3: Cross multiply
    25,319.94x = 34,939.72 × 13,989.32
  4. Step 4: Simplify right side
    25,319.94x = 488,782,766.58
  5. Step 5: Solve for x
    x = 488,782,766.58/25,319.94
  6. Step 6: Final answer
    x = 19,304.26

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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.