Home / 35,633.61-53,434.62-18,990.54

Finding the Fourth Proportional to 35,633.61, 53,434.62 and 18,990.54

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Solution

The fourth proportional to 35,633.61, 53,434.62 and 18,990.54 is: 28,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,633.61 : 53,434.62 = 18,990.54 : x
  2. Step 2: Convert to fraction form
    35,633.61/53,434.62 = 18,990.54/x
  3. Step 3: Cross multiply
    35,633.61x = 53,434.62 × 18,990.54
  4. Step 4: Simplify right side
    35,633.61x = 1,014,752,288.49
  5. Step 5: Solve for x
    x = 1,014,752,288.49/35,633.61
  6. Step 6: Final answer
    x = 28,477.39

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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.