Home / 18,933.59-28,404.54-5,605.55

Finding the Fourth Proportional to 18,933.59, 28,404.54 and 5,605.55

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Solution

The fourth proportional to 18,933.59, 28,404.54 and 5,605.55 is: 8,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.59 : 28,404.54 = 5,605.55 : x
  2. Step 2: Convert to fraction form
    18,933.59/28,404.54 = 5,605.55/x
  3. Step 3: Cross multiply
    18,933.59x = 28,404.54 × 5,605.55
  4. Step 4: Simplify right side
    18,933.59x = 159,222,927.17
  5. Step 5: Solve for x
    x = 159,222,927.17/18,933.59
  6. Step 6: Final answer
    x = 8,409.55

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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.