Home / 30,808.84-42,516.53-18,069.57

Finding the Fourth Proportional to 30,808.84, 42,516.53 and 18,069.57

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Solution

The fourth proportional to 30,808.84, 42,516.53 and 18,069.57 is: 24,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.84 : 42,516.53 = 18,069.57 : x
  2. Step 2: Convert to fraction form
    30,808.84/42,516.53 = 18,069.57/x
  3. Step 3: Cross multiply
    30,808.84x = 42,516.53 × 18,069.57
  4. Step 4: Simplify right side
    30,808.84x = 768,255,408.85
  5. Step 5: Solve for x
    x = 768,255,408.85/30,808.84
  6. Step 6: Final answer
    x = 24,936.20

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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.