Home / 40,692.96-61,035.98-12,612.38

Finding the Fourth Proportional to 40,692.96, 61,035.98 and 12,612.38

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Solution

The fourth proportional to 40,692.96, 61,035.98 and 12,612.38 is: 18,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,692.96 : 61,035.98 = 12,612.38 : x
  2. Step 2: Convert to fraction form
    40,692.96/61,035.98 = 12,612.38/x
  3. Step 3: Cross multiply
    40,692.96x = 61,035.98 × 12,612.38
  4. Step 4: Simplify right side
    40,692.96x = 769,808,605.19
  5. Step 5: Solve for x
    x = 769,808,605.19/40,692.96
  6. Step 6: Final answer
    x = 18,917.49

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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.