Home / 25,712.40-38,568.60-21,338.40

Finding the Fourth Proportional to 25,712.40, 38,568.60 and 21,338.40

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Solution

The fourth proportional to 25,712.40, 38,568.60 and 21,338.40 is: 32,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,712.40 : 38,568.60 = 21,338.40 : x
  2. Step 2: Convert to fraction form
    25,712.40/38,568.60 = 21,338.40/x
  3. Step 3: Cross multiply
    25,712.40x = 38,568.60 × 21,338.40
  4. Step 4: Simplify right side
    25,712.40x = 822,992,214.24
  5. Step 5: Solve for x
    x = 822,992,214.24/25,712.40
  6. Step 6: Final answer
    x = 32,007.60

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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.