Home / 25,413.66-38,031.78-19,399.40

Finding the Fourth Proportional to 25,413.66, 38,031.78 and 19,399.40

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Solution

The fourth proportional to 25,413.66, 38,031.78 and 19,399.40 is: 29,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,413.66 : 38,031.78 = 19,399.40 : x
  2. Step 2: Convert to fraction form
    25,413.66/38,031.78 = 19,399.40/x
  3. Step 3: Cross multiply
    25,413.66x = 38,031.78 × 19,399.40
  4. Step 4: Simplify right side
    25,413.66x = 737,793,712.93
  5. Step 5: Solve for x
    x = 737,793,712.93/25,413.66
  6. Step 6: Final answer
    x = 29,031.38

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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.