Home / 26,520.32-39,778.37-15,419.93

Finding the Fourth Proportional to 26,520.32, 39,778.37 and 15,419.93

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Solution

The fourth proportional to 26,520.32, 39,778.37 and 15,419.93 is: 23,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,520.32 : 39,778.37 = 15,419.93 : x
  2. Step 2: Convert to fraction form
    26,520.32/39,778.37 = 15,419.93/x
  3. Step 3: Cross multiply
    26,520.32x = 39,778.37 × 15,419.93
  4. Step 4: Simplify right side
    26,520.32x = 613,379,603.81
  5. Step 5: Solve for x
    x = 613,379,603.81/26,520.32
  6. Step 6: Final answer
    x = 23,128.67

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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.