Home / 19,438.59-29,157.69-8,905.62

Finding the Fourth Proportional to 19,438.59, 29,157.69 and 8,905.62

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Solution

The fourth proportional to 19,438.59, 29,157.69 and 8,905.62 is: 13,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.59 : 29,157.69 = 8,905.62 : x
  2. Step 2: Convert to fraction form
    19,438.59/29,157.69 = 8,905.62/x
  3. Step 3: Cross multiply
    19,438.59x = 29,157.69 × 8,905.62
  4. Step 4: Simplify right side
    19,438.59x = 259,667,410.95
  5. Step 5: Solve for x
    x = 259,667,410.95/19,438.59
  6. Step 6: Final answer
    x = 13,358.35

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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.