Home / 19,033.57-28,539.15-8,890.75

Finding the Fourth Proportional to 19,033.57, 28,539.15 and 8,890.75

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Solution

The fourth proportional to 19,033.57, 28,539.15 and 8,890.75 is: 13,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,033.57 : 28,539.15 = 8,890.75 : x
  2. Step 2: Convert to fraction form
    19,033.57/28,539.15 = 8,890.75/x
  3. Step 3: Cross multiply
    19,033.57x = 28,539.15 × 8,890.75
  4. Step 4: Simplify right side
    19,033.57x = 253,734,343.17
  5. Step 5: Solve for x
    x = 253,734,343.17/19,033.57
  6. Step 6: Final answer
    x = 13,330.89

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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.