Home / 25,591.36-38,386.32-13,978.12

Finding the Fourth Proportional to 25,591.36, 38,386.32 and 13,978.12

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Solution

The fourth proportional to 25,591.36, 38,386.32 and 13,978.12 is: 20,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,591.36 : 38,386.32 = 13,978.12 : x
  2. Step 2: Convert to fraction form
    25,591.36/38,386.32 = 13,978.12/x
  3. Step 3: Cross multiply
    25,591.36x = 38,386.32 × 13,978.12
  4. Step 4: Simplify right side
    25,591.36x = 536,568,587.32
  5. Step 5: Solve for x
    x = 536,568,587.32/25,591.36
  6. Step 6: Final answer
    x = 20,966.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.