Home / 20,534.63-28,337.72-11,103.17

Finding the Fourth Proportional to 20,534.63, 28,337.72 and 11,103.17

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Solution

The fourth proportional to 20,534.63, 28,337.72 and 11,103.17 is: 15,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.63 : 28,337.72 = 11,103.17 : x
  2. Step 2: Convert to fraction form
    20,534.63/28,337.72 = 11,103.17/x
  3. Step 3: Cross multiply
    20,534.63x = 28,337.72 × 11,103.17
  4. Step 4: Simplify right side
    20,534.63x = 314,638,325.37
  5. Step 5: Solve for x
    x = 314,638,325.37/20,534.63
  6. Step 6: Final answer
    x = 15,322.33

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