Home / 25,628.10-38,419.35-13,788.24

Finding the Fourth Proportional to 25,628.10, 38,419.35 and 13,788.24

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Solution

The fourth proportional to 25,628.10, 38,419.35 and 13,788.24 is: 20,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,628.10 : 38,419.35 = 13,788.24 : x
  2. Step 2: Convert to fraction form
    25,628.10/38,419.35 = 13,788.24/x
  3. Step 3: Cross multiply
    25,628.10x = 38,419.35 × 13,788.24
  4. Step 4: Simplify right side
    25,628.10x = 529,735,218.44
  5. Step 5: Solve for x
    x = 529,735,218.44/25,628.10
  6. Step 6: Final answer
    x = 20,670.09

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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.