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Finding the Fourth Proportional to 32,911, 45,418.32 and 18,007

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Solution

The fourth proportional to 32,911, 45,418.32 and 18,007 is: 24,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,911 : 45,418.32 = 18,007 : x
  2. Step 2: Convert to fraction form
    32,911/45,418.32 = 18,007/x
  3. Step 3: Cross multiply
    32,911x = 45,418.32 × 18,007
  4. Step 4: Simplify right side
    32,911x = 817,847,688.24
  5. Step 5: Solve for x
    x = 817,847,688.24/32,911
  6. Step 6: Final answer
    x = 24,850.28

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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.