Home / 18,635.42-25,695.36-14,855.65

Finding the Fourth Proportional to 18,635.42, 25,695.36 and 14,855.65

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Solution

The fourth proportional to 18,635.42, 25,695.36 and 14,855.65 is: 20,483.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.42 : 25,695.36 = 14,855.65 : x
  2. Step 2: Convert to fraction form
    18,635.42/25,695.36 = 14,855.65/x
  3. Step 3: Cross multiply
    18,635.42x = 25,695.36 × 14,855.65
  4. Step 4: Simplify right side
    18,635.42x = 381,721,210.55
  5. Step 5: Solve for x
    x = 381,721,210.55/18,635.42
  6. Step 6: Final answer
    x = 20,483.64

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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.