Home / 34,690.50-47,872.81-18,774.96

Finding the Fourth Proportional to 34,690.50, 47,872.81 and 18,774.96

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Solution

The fourth proportional to 34,690.50, 47,872.81 and 18,774.96 is: 25,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,690.50 : 47,872.81 = 18,774.96 : x
  2. Step 2: Convert to fraction form
    34,690.50/47,872.81 = 18,774.96/x
  3. Step 3: Cross multiply
    34,690.50x = 47,872.81 × 18,774.96
  4. Step 4: Simplify right side
    34,690.50x = 898,809,998.96
  5. Step 5: Solve for x
    x = 898,809,998.96/34,690.50
  6. Step 6: Final answer
    x = 25,909.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.