Home / 21,054.63-31,586.96-11,191.77

Finding the Fourth Proportional to 21,054.63, 31,586.96 and 11,191.77

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Solution

The fourth proportional to 21,054.63, 31,586.96 and 11,191.77 is: 16,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.63 : 31,586.96 = 11,191.77 : x
  2. Step 2: Convert to fraction form
    21,054.63/31,586.96 = 11,191.77/x
  3. Step 3: Cross multiply
    21,054.63x = 31,586.96 × 11,191.77
  4. Step 4: Simplify right side
    21,054.63x = 353,514,019.30
  5. Step 5: Solve for x
    x = 353,514,019.30/21,054.63
  6. Step 6: Final answer
    x = 16,790.32

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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.