Home / 21,360.99-32,002.61-20,894.43

Finding the Fourth Proportional to 21,360.99, 32,002.61 and 20,894.43

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Solution

The fourth proportional to 21,360.99, 32,002.61 and 20,894.43 is: 31,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.99 : 32,002.61 = 20,894.43 : x
  2. Step 2: Convert to fraction form
    21,360.99/32,002.61 = 20,894.43/x
  3. Step 3: Cross multiply
    21,360.99x = 32,002.61 × 20,894.43
  4. Step 4: Simplify right side
    21,360.99x = 668,676,189.99
  5. Step 5: Solve for x
    x = 668,676,189.99/21,360.99
  6. Step 6: Final answer
    x = 31,303.61

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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.