Home / 21,357.61-32,033.13-7,126.34

Finding the Fourth Proportional to 21,357.61, 32,033.13 and 7,126.34

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Solution

The fourth proportional to 21,357.61, 32,033.13 and 7,126.34 is: 10,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.61 : 32,033.13 = 7,126.34 : x
  2. Step 2: Convert to fraction form
    21,357.61/32,033.13 = 7,126.34/x
  3. Step 3: Cross multiply
    21,357.61x = 32,033.13 × 7,126.34
  4. Step 4: Simplify right side
    21,357.61x = 228,278,975.64
  5. Step 5: Solve for x
    x = 228,278,975.64/21,357.61
  6. Step 6: Final answer
    x = 10,688.41

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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.