Home / 25,880.92-35,707.44-15,120.88

Finding the Fourth Proportional to 25,880.92, 35,707.44 and 15,120.88

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Solution

The fourth proportional to 25,880.92, 35,707.44 and 15,120.88 is: 20,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.92 : 35,707.44 = 15,120.88 : x
  2. Step 2: Convert to fraction form
    25,880.92/35,707.44 = 15,120.88/x
  3. Step 3: Cross multiply
    25,880.92x = 35,707.44 × 15,120.88
  4. Step 4: Simplify right side
    25,880.92x = 539,927,915.35
  5. Step 5: Solve for x
    x = 539,927,915.35/25,880.92
  6. Step 6: Final answer
    x = 20,862.01

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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.