Home / 38,603.20-57,904.80-13,643.05

Finding the Fourth Proportional to 38,603.20, 57,904.80 and 13,643.05

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Solution

The fourth proportional to 38,603.20, 57,904.80 and 13,643.05 is: 20,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.20 : 57,904.80 = 13,643.05 : x
  2. Step 2: Convert to fraction form
    38,603.20/57,904.80 = 13,643.05/x
  3. Step 3: Cross multiply
    38,603.20x = 57,904.80 × 13,643.05
  4. Step 4: Simplify right side
    38,603.20x = 789,998,081.64
  5. Step 5: Solve for x
    x = 789,998,081.64/38,603.20
  6. Step 6: Final answer
    x = 20,464.58

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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.