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Finding the Fourth Proportional to 32,912, 45,418.56 and 18,008.32

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Solution

The fourth proportional to 32,912, 45,418.56 and 18,008.32 is: 24,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,912 : 45,418.56 = 18,008.32 : x
  2. Step 2: Convert to fraction form
    32,912/45,418.56 = 18,008.32/x
  3. Step 3: Cross multiply
    32,912x = 45,418.56 × 18,008.32
  4. Step 4: Simplify right side
    32,912x = 817,911,962.42
  5. Step 5: Solve for x
    x = 817,911,962.42/32,912
  6. Step 6: Final answer
    x = 24,851.48

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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.