Home / 25,811.77-35,615.92-15,203.52

Finding the Fourth Proportional to 25,811.77, 35,615.92 and 15,203.52

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Solution

The fourth proportional to 25,811.77, 35,615.92 and 15,203.52 is: 20,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.77 : 35,615.92 = 15,203.52 : x
  2. Step 2: Convert to fraction form
    25,811.77/35,615.92 = 15,203.52/x
  3. Step 3: Cross multiply
    25,811.77x = 35,615.92 × 15,203.52
  4. Step 4: Simplify right side
    25,811.77x = 541,487,352.04
  5. Step 5: Solve for x
    x = 541,487,352.04/25,811.77
  6. Step 6: Final answer
    x = 20,978.31

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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.