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Finding the Fourth Proportional to 31,392, 47,088.96 and 9,504

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Solution

The fourth proportional to 31,392, 47,088.96 and 9,504 is: 14,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392 : 47,088.96 = 9,504 : x
  2. Step 2: Convert to fraction form
    31,392/47,088.96 = 9,504/x
  3. Step 3: Cross multiply
    31,392x = 47,088.96 × 9,504
  4. Step 4: Simplify right side
    31,392x = 447,533,475.84
  5. Step 5: Solve for x
    x = 447,533,475.84/31,392
  6. Step 6: Final answer
    x = 14,256.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.