Home / 20,318.58-28,012.77-14,648.58

Finding the Fourth Proportional to 20,318.58, 28,012.77 and 14,648.58

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Solution

The fourth proportional to 20,318.58, 28,012.77 and 14,648.58 is: 20,195.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.58 : 28,012.77 = 14,648.58 : x
  2. Step 2: Convert to fraction form
    20,318.58/28,012.77 = 14,648.58/x
  3. Step 3: Cross multiply
    20,318.58x = 28,012.77 × 14,648.58
  4. Step 4: Simplify right side
    20,318.58x = 410,347,302.37
  5. Step 5: Solve for x
    x = 410,347,302.37/20,318.58
  6. Step 6: Final answer
    x = 20,195.67

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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.