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Finding the Fourth Proportional to 46,881.35, 70,327.49 and 18,811.20

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Solution

The fourth proportional to 46,881.35, 70,327.49 and 18,811.20 is: 28,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,881.35 : 70,327.49 = 18,811.20 : x
  2. Step 2: Convert to fraction form
    46,881.35/70,327.49 = 18,811.20/x
  3. Step 3: Cross multiply
    46,881.35x = 70,327.49 × 18,811.20
  4. Step 4: Simplify right side
    46,881.35x = 1,322,944,385.83
  5. Step 5: Solve for x
    x = 1,322,944,385.83/46,881.35
  6. Step 6: Final answer
    x = 28,218.99

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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.