Home / 25,459.64-38,180.35-8,815.21

Finding the Fourth Proportional to 25,459.64, 38,180.35 and 8,815.21

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Solution

The fourth proportional to 25,459.64, 38,180.35 and 8,815.21 is: 13,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.64 : 38,180.35 = 8,815.21 : x
  2. Step 2: Convert to fraction form
    25,459.64/38,180.35 = 8,815.21/x
  3. Step 3: Cross multiply
    25,459.64x = 38,180.35 × 8,815.21
  4. Step 4: Simplify right side
    25,459.64x = 336,567,743.48
  5. Step 5: Solve for x
    x = 336,567,743.48/25,459.64
  6. Step 6: Final answer
    x = 13,219.66

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1.5x scale

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.