Home / 20,726.58-28,603.44-11,295.84

Finding the Fourth Proportional to 20,726.58, 28,603.44 and 11,295.84

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Solution

The fourth proportional to 20,726.58, 28,603.44 and 11,295.84 is: 15,588.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.58 : 28,603.44 = 11,295.84 : x
  2. Step 2: Convert to fraction form
    20,726.58/28,603.44 = 11,295.84/x
  3. Step 3: Cross multiply
    20,726.58x = 28,603.44 × 11,295.84
  4. Step 4: Simplify right side
    20,726.58x = 323,099,881.69
  5. Step 5: Solve for x
    x = 323,099,881.69/20,726.58
  6. Step 6: Final answer
    x = 15,588.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.