Home / 18,352.53-25,315.08-15,278.58

Finding the Fourth Proportional to 18,352.53, 25,315.08 and 15,278.58

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Solution

The fourth proportional to 18,352.53, 25,315.08 and 15,278.58 is: 21,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.53 : 25,315.08 = 15,278.58 : x
  2. Step 2: Convert to fraction form
    18,352.53/25,315.08 = 15,278.58/x
  3. Step 3: Cross multiply
    18,352.53x = 25,315.08 × 15,278.58
  4. Step 4: Simplify right side
    18,352.53x = 386,778,474.99
  5. Step 5: Solve for x
    x = 386,778,474.99/18,352.53
  6. Step 6: Final answer
    x = 21,074.94

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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.