Home / 19,676.42-27,132.02-13,291.93

Finding the Fourth Proportional to 19,676.42, 27,132.02 and 13,291.93

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Solution

The fourth proportional to 19,676.42, 27,132.02 and 13,291.93 is: 18,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,676.42 : 27,132.02 = 13,291.93 : x
  2. Step 2: Convert to fraction form
    19,676.42/27,132.02 = 13,291.93/x
  3. Step 3: Cross multiply
    19,676.42x = 27,132.02 × 13,291.93
  4. Step 4: Simplify right side
    19,676.42x = 360,636,910.60
  5. Step 5: Solve for x
    x = 360,636,910.60/19,676.42
  6. Step 6: Final answer
    x = 18,328.38

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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.