Home / 21,246.63-31,869.95-10,119.58

Finding the Fourth Proportional to 21,246.63, 31,869.95 and 10,119.58

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Solution

The fourth proportional to 21,246.63, 31,869.95 and 10,119.58 is: 15,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.63 : 31,869.95 = 10,119.58 : x
  2. Step 2: Convert to fraction form
    21,246.63/31,869.95 = 10,119.58/x
  3. Step 3: Cross multiply
    21,246.63x = 31,869.95 × 10,119.58
  4. Step 4: Simplify right side
    21,246.63x = 322,510,508.62
  5. Step 5: Solve for x
    x = 322,510,508.62/21,246.63
  6. Step 6: Final answer
    x = 15,179.37

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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.