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Finding the Fourth Proportional to 31,483, 43,445.68 and 17,335.92

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Solution

The fourth proportional to 31,483, 43,445.68 and 17,335.92 is: 23,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483 : 43,445.68 = 17,335.92 : x
  2. Step 2: Convert to fraction form
    31,483/43,445.68 = 17,335.92/x
  3. Step 3: Cross multiply
    31,483x = 43,445.68 × 17,335.92
  4. Step 4: Simplify right side
    31,483x = 753,170,832.83
  5. Step 5: Solve for x
    x = 753,170,832.83/31,483
  6. Step 6: Final answer
    x = 23,923.10

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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.