Home / 18,271.85-25,216.31-10,311.17

Finding the Fourth Proportional to 18,271.85, 25,216.31 and 10,311.17

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Solution

The fourth proportional to 18,271.85, 25,216.31 and 10,311.17 is: 14,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.85 : 25,216.31 = 10,311.17 : x
  2. Step 2: Convert to fraction form
    18,271.85/25,216.31 = 10,311.17/x
  3. Step 3: Cross multiply
    18,271.85x = 25,216.31 × 10,311.17
  4. Step 4: Simplify right side
    18,271.85x = 260,009,558.88
  5. Step 5: Solve for x
    x = 260,009,558.88/18,271.85
  6. Step 6: Final answer
    x = 14,230.07

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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.