Home / 20,898.63-28,840.05-11,466.99

Finding the Fourth Proportional to 20,898.63, 28,840.05 and 11,466.99

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Solution

The fourth proportional to 20,898.63, 28,840.05 and 11,466.99 is: 15,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.63 : 28,840.05 = 11,466.99 : x
  2. Step 2: Convert to fraction form
    20,898.63/28,840.05 = 11,466.99/x
  3. Step 3: Cross multiply
    20,898.63x = 28,840.05 × 11,466.99
  4. Step 4: Simplify right side
    20,898.63x = 330,708,564.95
  5. Step 5: Solve for x
    x = 330,708,564.95/20,898.63
  6. Step 6: Final answer
    x = 15,824.41

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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.