Home / 21,309.04-31,974.52-16,343.32

Finding the Fourth Proportional to 21,309.04, 31,974.52 and 16,343.32

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Solution

The fourth proportional to 21,309.04, 31,974.52 and 16,343.32 is: 24,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309.04 : 31,974.52 = 16,343.32 : x
  2. Step 2: Convert to fraction form
    21,309.04/31,974.52 = 16,343.32/x
  3. Step 3: Cross multiply
    21,309.04x = 31,974.52 × 16,343.32
  4. Step 4: Simplify right side
    21,309.04x = 522,569,812.21
  5. Step 5: Solve for x
    x = 522,569,812.21/21,309.04
  6. Step 6: Final answer
    x = 24,523.39

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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.