Home / 25,718.92-35,503.65-15,109.21

Finding the Fourth Proportional to 25,718.92, 35,503.65 and 15,109.21

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Solution

The fourth proportional to 25,718.92, 35,503.65 and 15,109.21 is: 20,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.92 : 35,503.65 = 15,109.21 : x
  2. Step 2: Convert to fraction form
    25,718.92/35,503.65 = 15,109.21/x
  3. Step 3: Cross multiply
    25,718.92x = 35,503.65 × 15,109.21
  4. Step 4: Simplify right side
    25,718.92x = 536,432,103.62
  5. Step 5: Solve for x
    x = 536,432,103.62/25,718.92
  6. Step 6: Final answer
    x = 20,857.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.