Home / 26,840.98-40,261.47-7,120.36

Finding the Fourth Proportional to 26,840.98, 40,261.47 and 7,120.36

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Solution

The fourth proportional to 26,840.98, 40,261.47 and 7,120.36 is: 10,680.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,840.98 : 40,261.47 = 7,120.36 : x
  2. Step 2: Convert to fraction form
    26,840.98/40,261.47 = 7,120.36/x
  3. Step 3: Cross multiply
    26,840.98x = 40,261.47 × 7,120.36
  4. Step 4: Simplify right side
    26,840.98x = 286,676,160.53
  5. Step 5: Solve for x
    x = 286,676,160.53/26,840.98
  6. Step 6: Final answer
    x = 10,680.54

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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.