Home / 26,728.81-40,081.53-12,692.86

Finding the Fourth Proportional to 26,728.81, 40,081.53 and 12,692.86

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Solution

The fourth proportional to 26,728.81, 40,081.53 and 12,692.86 is: 19,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.81 : 40,081.53 = 12,692.86 : x
  2. Step 2: Convert to fraction form
    26,728.81/40,081.53 = 12,692.86/x
  3. Step 3: Cross multiply
    26,728.81x = 40,081.53 × 12,692.86
  4. Step 4: Simplify right side
    26,728.81x = 508,749,248.88
  5. Step 5: Solve for x
    x = 508,749,248.88/26,728.81
  6. Step 6: Final answer
    x = 19,033.74

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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.