Home / 21,030.57-29,021.58-11,599.11

Finding the Fourth Proportional to 21,030.57, 29,021.58 and 11,599.11

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Solution

The fourth proportional to 21,030.57, 29,021.58 and 11,599.11 is: 16,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.57 : 29,021.58 = 11,599.11 : x
  2. Step 2: Convert to fraction form
    21,030.57/29,021.58 = 11,599.11/x
  3. Step 3: Cross multiply
    21,030.57x = 29,021.58 × 11,599.11
  4. Step 4: Simplify right side
    21,030.57x = 336,624,498.79
  5. Step 5: Solve for x
    x = 336,624,498.79/21,030.57
  6. Step 6: Final answer
    x = 16,006.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.