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Finding the Fourth Proportional to 18,009.30, 24,823.08 and 12,038.79

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Solution

The fourth proportional to 18,009.30, 24,823.08 and 12,038.79 is: 16,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.30 : 24,823.08 = 12,038.79 : x
  2. Step 2: Convert to fraction form
    18,009.30/24,823.08 = 12,038.79/x
  3. Step 3: Cross multiply
    18,009.30x = 24,823.08 × 12,038.79
  4. Step 4: Simplify right side
    18,009.30x = 298,839,799.33
  5. Step 5: Solve for x
    x = 298,839,799.33/18,009.30
  6. Step 6: Final answer
    x = 16,593.64

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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.