Home / 20,693.26-28,559.78-12,192.67

Finding the Fourth Proportional to 20,693.26, 28,559.78 and 12,192.67

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Solution

The fourth proportional to 20,693.26, 28,559.78 and 12,192.67 is: 16,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.26 : 28,559.78 = 12,192.67 : x
  2. Step 2: Convert to fraction form
    20,693.26/28,559.78 = 12,192.67/x
  3. Step 3: Cross multiply
    20,693.26x = 28,559.78 × 12,192.67
  4. Step 4: Simplify right side
    20,693.26x = 348,219,972.81
  5. Step 5: Solve for x
    x = 348,219,972.81/20,693.26
  6. Step 6: Final answer
    x = 16,827.70

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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.