Home / 19,389.76-29,099.28-14,209.12

Finding the Fourth Proportional to 19,389.76, 29,099.28 and 14,209.12

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Solution

The fourth proportional to 19,389.76, 29,099.28 and 14,209.12 is: 21,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.76 : 29,099.28 = 14,209.12 : x
  2. Step 2: Convert to fraction form
    19,389.76/29,099.28 = 14,209.12/x
  3. Step 3: Cross multiply
    19,389.76x = 29,099.28 × 14,209.12
  4. Step 4: Simplify right side
    19,389.76x = 413,475,161.43
  5. Step 5: Solve for x
    x = 413,475,161.43/19,389.76
  6. Step 6: Final answer
    x = 21,324.41

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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.