Home / 35,634.61-53,436.12-18,991.54

Finding the Fourth Proportional to 35,634.61, 53,436.12 and 18,991.54

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Solution

The fourth proportional to 35,634.61, 53,436.12 and 18,991.54 is: 28,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,634.61 : 53,436.12 = 18,991.54 : x
  2. Step 2: Convert to fraction form
    35,634.61/53,436.12 = 18,991.54/x
  3. Step 3: Cross multiply
    35,634.61x = 53,436.12 × 18,991.54
  4. Step 4: Simplify right side
    35,634.61x = 1,014,834,210.42
  5. Step 5: Solve for x
    x = 1,014,834,210.42/35,634.61
  6. Step 6: Final answer
    x = 28,478.89

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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.