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Finding the Fourth Proportional to 17,989.68, 24,809.04 and 11,929.28

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Solution

The fourth proportional to 17,989.68, 24,809.04 and 11,929.28 is: 16,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.68 : 24,809.04 = 11,929.28 : x
  2. Step 2: Convert to fraction form
    17,989.68/24,809.04 = 11,929.28/x
  3. Step 3: Cross multiply
    17,989.68x = 24,809.04 × 11,929.28
  4. Step 4: Simplify right side
    17,989.68x = 295,953,984.69
  5. Step 5: Solve for x
    x = 295,953,984.69/17,989.68
  6. Step 6: Final answer
    x = 16,451.32

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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.