Home / 25,387.61-38,078.99-8,745.35

Finding the Fourth Proportional to 25,387.61, 38,078.99 and 8,745.35

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Solution

The fourth proportional to 25,387.61, 38,078.99 and 8,745.35 is: 13,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,387.61 : 38,078.99 = 8,745.35 : x
  2. Step 2: Convert to fraction form
    25,387.61/38,078.99 = 8,745.35/x
  3. Step 3: Cross multiply
    25,387.61x = 38,078.99 × 8,745.35
  4. Step 4: Simplify right side
    25,387.61x = 333,014,051.47
  5. Step 5: Solve for x
    x = 333,014,051.47/25,387.61
  6. Step 6: Final answer
    x = 13,117.19

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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.