Home / 25,565.65-38,276.38-13,530.54

Finding the Fourth Proportional to 25,565.65, 38,276.38 and 13,530.54

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Solution

The fourth proportional to 25,565.65, 38,276.38 and 13,530.54 is: 20,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.65 : 38,276.38 = 13,530.54 : x
  2. Step 2: Convert to fraction form
    25,565.65/38,276.38 = 13,530.54/x
  3. Step 3: Cross multiply
    25,565.65x = 38,276.38 × 13,530.54
  4. Step 4: Simplify right side
    25,565.65x = 517,900,090.65
  5. Step 5: Solve for x
    x = 517,900,090.65/25,565.65
  6. Step 6: Final answer
    x = 20,257.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.