Home / 18,216.89-25,253.95-17,219.07

Finding the Fourth Proportional to 18,216.89, 25,253.95 and 17,219.07

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Solution

The fourth proportional to 18,216.89, 25,253.95 and 17,219.07 is: 23,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.89 : 25,253.95 = 17,219.07 : x
  2. Step 2: Convert to fraction form
    18,216.89/25,253.95 = 17,219.07/x
  3. Step 3: Cross multiply
    18,216.89x = 25,253.95 × 17,219.07
  4. Step 4: Simplify right side
    18,216.89x = 434,849,532.83
  5. Step 5: Solve for x
    x = 434,849,532.83/18,216.89
  6. Step 6: Final answer
    x = 23,870.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.