Home / 21,558.24-32,340.60-7,704

Finding the Fourth Proportional to 21,558.24, 32,340.60 and 7,704

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Solution

The fourth proportional to 21,558.24, 32,340.60 and 7,704 is: 11,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.24 : 32,340.60 = 7,704 : x
  2. Step 2: Convert to fraction form
    21,558.24/32,340.60 = 7,704/x
  3. Step 3: Cross multiply
    21,558.24x = 32,340.60 × 7,704
  4. Step 4: Simplify right side
    21,558.24x = 249,151,982.40
  5. Step 5: Solve for x
    x = 249,151,982.40/21,558.24
  6. Step 6: Final answer
    x = 11,557.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.