Home / 21,384.08-29,508.83-11,823.41

Finding the Fourth Proportional to 21,384.08, 29,508.83 and 11,823.41

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Solution

The fourth proportional to 21,384.08, 29,508.83 and 11,823.41 is: 16,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.08 : 29,508.83 = 11,823.41 : x
  2. Step 2: Convert to fraction form
    21,384.08/29,508.83 = 11,823.41/x
  3. Step 3: Cross multiply
    21,384.08x = 29,508.83 × 11,823.41
  4. Step 4: Simplify right side
    21,384.08x = 348,895,099.04
  5. Step 5: Solve for x
    x = 348,895,099.04/21,384.08
  6. Step 6: Final answer
    x = 16,315.65

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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.