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Finding the Fourth Proportional to 21,453.39, 32,184.93 and 7,602.39

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Solution

The fourth proportional to 21,453.39, 32,184.93 and 7,602.39 is: 11,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.39 : 32,184.93 = 7,602.39 : x
  2. Step 2: Convert to fraction form
    21,453.39/32,184.93 = 7,602.39/x
  3. Step 3: Cross multiply
    21,453.39x = 32,184.93 × 7,602.39
  4. Step 4: Simplify right side
    21,453.39x = 244,682,389.98
  5. Step 5: Solve for x
    x = 244,682,389.98/21,453.39
  6. Step 6: Final answer
    x = 11,405.30

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1.5x scale

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.