Home / 21,418.86-32,114.58-10,303.41

Finding the Fourth Proportional to 21,418.86, 32,114.58 and 10,303.41

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Solution

The fourth proportional to 21,418.86, 32,114.58 and 10,303.41 is: 15,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.86 : 32,114.58 = 10,303.41 : x
  2. Step 2: Convert to fraction form
    21,418.86/32,114.58 = 10,303.41/x
  3. Step 3: Cross multiply
    21,418.86x = 32,114.58 × 10,303.41
  4. Step 4: Simplify right side
    21,418.86x = 330,889,684.72
  5. Step 5: Solve for x
    x = 330,889,684.72/21,418.86
  6. Step 6: Final answer
    x = 15,448.52

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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.