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Finding the Fourth Proportional to 32,883, 45,378.72 and 17,979

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Solution

The fourth proportional to 32,883, 45,378.72 and 17,979 is: 24,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,883 : 45,378.72 = 17,979 : x
  2. Step 2: Convert to fraction form
    32,883/45,378.72 = 17,979/x
  3. Step 3: Cross multiply
    32,883x = 45,378.72 × 17,979
  4. Step 4: Simplify right side
    32,883x = 815,864,006.88
  5. Step 5: Solve for x
    x = 815,864,006.88/32,883
  6. Step 6: Final answer
    x = 24,811.12

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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.