Home / 21,447.29-29,596.55-11,886.77

Finding the Fourth Proportional to 21,447.29, 29,596.55 and 11,886.77

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Solution

The fourth proportional to 21,447.29, 29,596.55 and 11,886.77 is: 16,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.29 : 29,596.55 = 11,886.77 : x
  2. Step 2: Convert to fraction form
    21,447.29/29,596.55 = 11,886.77/x
  3. Step 3: Cross multiply
    21,447.29x = 29,596.55 × 11,886.77
  4. Step 4: Simplify right side
    21,447.29x = 351,807,323.21
  5. Step 5: Solve for x
    x = 351,807,323.21/21,447.29
  6. Step 6: Final answer
    x = 16,403.35

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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.