Home / 19,484.12-29,134.94-13,920.26

Finding the Fourth Proportional to 19,484.12, 29,134.94 and 13,920.26

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Solution

The fourth proportional to 19,484.12, 29,134.94 and 13,920.26 is: 20,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.12 : 29,134.94 = 13,920.26 : x
  2. Step 2: Convert to fraction form
    19,484.12/29,134.94 = 13,920.26/x
  3. Step 3: Cross multiply
    19,484.12x = 29,134.94 × 13,920.26
  4. Step 4: Simplify right side
    19,484.12x = 405,565,802.91
  5. Step 5: Solve for x
    x = 405,565,802.91/19,484.12
  6. Step 6: Final answer
    x = 20,815.20

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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.