Home / 25,974.81-35,844.12-15,920.28

Finding the Fourth Proportional to 25,974.81, 35,844.12 and 15,920.28

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Solution

The fourth proportional to 25,974.81, 35,844.12 and 15,920.28 is: 21,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.81 : 35,844.12 = 15,920.28 : x
  2. Step 2: Convert to fraction form
    25,974.81/35,844.12 = 15,920.28/x
  3. Step 3: Cross multiply
    25,974.81x = 35,844.12 × 15,920.28
  4. Step 4: Simplify right side
    25,974.81x = 570,648,426.75
  5. Step 5: Solve for x
    x = 570,648,426.75/25,974.81
  6. Step 6: Final answer
    x = 21,969.30

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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.