Home / 26,026.80-39,040.20-10,455.60

Finding the Fourth Proportional to 26,026.80, 39,040.20 and 10,455.60

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Solution

The fourth proportional to 26,026.80, 39,040.20 and 10,455.60 is: 15,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,026.80 : 39,040.20 = 10,455.60 : x
  2. Step 2: Convert to fraction form
    26,026.80/39,040.20 = 10,455.60/x
  3. Step 3: Cross multiply
    26,026.80x = 39,040.20 × 10,455.60
  4. Step 4: Simplify right side
    26,026.80x = 408,188,715.12
  5. Step 5: Solve for x
    x = 408,188,715.12/26,026.80
  6. Step 6: Final answer
    x = 15,683.40

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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.