Home / 26,847.60-40,271.40-7,128.15

Finding the Fourth Proportional to 26,847.60, 40,271.40 and 7,128.15

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Solution

The fourth proportional to 26,847.60, 40,271.40 and 7,128.15 is: 10,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,847.60 : 40,271.40 = 7,128.15 : x
  2. Step 2: Convert to fraction form
    26,847.60/40,271.40 = 7,128.15/x
  3. Step 3: Cross multiply
    26,847.60x = 40,271.40 × 7,128.15
  4. Step 4: Simplify right side
    26,847.60x = 287,060,579.91
  5. Step 5: Solve for x
    x = 287,060,579.91/26,847.60
  6. Step 6: Final answer
    x = 10,692.23

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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.