Home / 21,582.21-32,377.11-8,931.93

Finding the Fourth Proportional to 21,582.21, 32,377.11 and 8,931.93

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Solution

The fourth proportional to 21,582.21, 32,377.11 and 8,931.93 is: 13,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.21 : 32,377.11 = 8,931.93 : x
  2. Step 2: Convert to fraction form
    21,582.21/32,377.11 = 8,931.93/x
  3. Step 3: Cross multiply
    21,582.21x = 32,377.11 × 8,931.93
  4. Step 4: Simplify right side
    21,582.21x = 289,190,080.12
  5. Step 5: Solve for x
    x = 289,190,080.12/21,582.21
  6. Step 6: Final answer
    x = 13,399.47

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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.