Home / 25,603.43-38,393.87-12,945.39

Finding the Fourth Proportional to 25,603.43, 38,393.87 and 12,945.39

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Solution

The fourth proportional to 25,603.43, 38,393.87 and 12,945.39 is: 19,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.43 : 38,393.87 = 12,945.39 : x
  2. Step 2: Convert to fraction form
    25,603.43/38,393.87 = 12,945.39/x
  3. Step 3: Cross multiply
    25,603.43x = 38,393.87 × 12,945.39
  4. Step 4: Simplify right side
    25,603.43x = 497,023,556.03
  5. Step 5: Solve for x
    x = 497,023,556.03/25,603.43
  6. Step 6: Final answer
    x = 19,412.39

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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.