Home / 30,771.75-42,464.95-16,624.56

Finding the Fourth Proportional to 30,771.75, 42,464.95 and 16,624.56

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Solution

The fourth proportional to 30,771.75, 42,464.95 and 16,624.56 is: 22,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,771.75 : 42,464.95 = 16,624.56 : x
  2. Step 2: Convert to fraction form
    30,771.75/42,464.95 = 16,624.56/x
  3. Step 3: Cross multiply
    30,771.75x = 42,464.95 × 16,624.56
  4. Step 4: Simplify right side
    30,771.75x = 705,961,109.17
  5. Step 5: Solve for x
    x = 705,961,109.17/30,771.75
  6. Step 6: Final answer
    x = 22,941.86

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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.