Home / 19,815.24-29,735.73-8,581.55

Finding the Fourth Proportional to 19,815.24, 29,735.73 and 8,581.55

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Solution

The fourth proportional to 19,815.24, 29,735.73 and 8,581.55 is: 12,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.24 : 29,735.73 = 8,581.55 : x
  2. Step 2: Convert to fraction form
    19,815.24/29,735.73 = 8,581.55/x
  3. Step 3: Cross multiply
    19,815.24x = 29,735.73 × 8,581.55
  4. Step 4: Simplify right side
    19,815.24x = 255,178,505.10
  5. Step 5: Solve for x
    x = 255,178,505.10/19,815.24
  6. Step 6: Final answer
    x = 12,877.89

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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.