Home / 26,142.45-39,213.80-6,421.01

Finding the Fourth Proportional to 26,142.45, 39,213.80 and 6,421.01

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Solution

The fourth proportional to 26,142.45, 39,213.80 and 6,421.01 is: 9,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.45 : 39,213.80 = 6,421.01 : x
  2. Step 2: Convert to fraction form
    26,142.45/39,213.80 = 6,421.01/x
  3. Step 3: Cross multiply
    26,142.45x = 39,213.80 × 6,421.01
  4. Step 4: Simplify right side
    26,142.45x = 251,792,201.94
  5. Step 5: Solve for x
    x = 251,792,201.94/26,142.45
  6. Step 6: Final answer
    x = 9,631.55

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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.