Home / 14,779.36-20,398.05-14,115.04

Finding the Fourth Proportional to 14,779.36, 20,398.05 and 14,115.04

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Solution

The fourth proportional to 14,779.36, 20,398.05 and 14,115.04 is: 19,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.36 : 20,398.05 = 14,115.04 : x
  2. Step 2: Convert to fraction form
    14,779.36/20,398.05 = 14,115.04/x
  3. Step 3: Cross multiply
    14,779.36x = 20,398.05 × 14,115.04
  4. Step 4: Simplify right side
    14,779.36x = 287,919,291.67
  5. Step 5: Solve for x
    x = 287,919,291.67/14,779.36
  6. Step 6: Final answer
    x = 19,481.17

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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.