Home / 19,389.21-29,045.75-12,795.27

Finding the Fourth Proportional to 19,389.21, 29,045.75 and 12,795.27

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Solution

The fourth proportional to 19,389.21, 29,045.75 and 12,795.27 is: 19,167.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.21 : 29,045.75 = 12,795.27 : x
  2. Step 2: Convert to fraction form
    19,389.21/29,045.75 = 12,795.27/x
  3. Step 3: Cross multiply
    19,389.21x = 29,045.75 × 12,795.27
  4. Step 4: Simplify right side
    19,389.21x = 371,648,149.63
  5. Step 5: Solve for x
    x = 371,648,149.63/19,389.21
  6. Step 6: Final answer
    x = 19,167.78

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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.