Home / 25,985.04-35,858.88-15,911.88

Finding the Fourth Proportional to 25,985.04, 35,858.88 and 15,911.88

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Solution

The fourth proportional to 25,985.04, 35,858.88 and 15,911.88 is: 21,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,985.04 : 35,858.88 = 15,911.88 : x
  2. Step 2: Convert to fraction form
    25,985.04/35,858.88 = 15,911.88/x
  3. Step 3: Cross multiply
    25,985.04x = 35,858.88 × 15,911.88
  4. Step 4: Simplify right side
    25,985.04x = 570,582,195.49
  5. Step 5: Solve for x
    x = 570,582,195.49/25,985.04
  6. Step 6: Final answer
    x = 21,958.10

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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.