Home / 21,337.83-29,448.16-11,779.43

Finding the Fourth Proportional to 21,337.83, 29,448.16 and 11,779.43

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Solution

The fourth proportional to 21,337.83, 29,448.16 and 11,779.43 is: 16,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.83 : 29,448.16 = 11,779.43 : x
  2. Step 2: Convert to fraction form
    21,337.83/29,448.16 = 11,779.43/x
  3. Step 3: Cross multiply
    21,337.83x = 29,448.16 × 11,779.43
  4. Step 4: Simplify right side
    21,337.83x = 346,882,362.66
  5. Step 5: Solve for x
    x = 346,882,362.66/21,337.83
  6. Step 6: Final answer
    x = 16,256.68

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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.