Home / 25,731.25-35,509.13-13,955.25

Finding the Fourth Proportional to 25,731.25, 35,509.13 and 13,955.25

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Solution

The fourth proportional to 25,731.25, 35,509.13 and 13,955.25 is: 19,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.25 : 35,509.13 = 13,955.25 : x
  2. Step 2: Convert to fraction form
    25,731.25/35,509.13 = 13,955.25/x
  3. Step 3: Cross multiply
    25,731.25x = 35,509.13 × 13,955.25
  4. Step 4: Simplify right side
    25,731.25x = 495,538,716.66
  5. Step 5: Solve for x
    x = 495,538,716.66/25,731.25
  6. Step 6: Final answer
    x = 19,258.25

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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.