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Finding the Fourth Proportional to 35,618.79, 53,380.99 and 18,942.92

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Solution

The fourth proportional to 35,618.79, 53,380.99 and 18,942.92 is: 28,389.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,618.79 : 53,380.99 = 18,942.92 : x
  2. Step 2: Convert to fraction form
    35,618.79/53,380.99 = 18,942.92/x
  3. Step 3: Cross multiply
    35,618.79x = 53,380.99 × 18,942.92
  4. Step 4: Simplify right side
    35,618.79x = 1,011,191,823.09
  5. Step 5: Solve for x
    x = 1,011,191,823.09/35,618.79
  6. Step 6: Final answer
    x = 28,389.28

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1.5x scale

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.