Home / 21,449.13-29,599.86-12,017.76

Finding the Fourth Proportional to 21,449.13, 29,599.86 and 12,017.76

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Solution

The fourth proportional to 21,449.13, 29,599.86 and 12,017.76 is: 16,584.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.13 : 29,599.86 = 12,017.76 : x
  2. Step 2: Convert to fraction form
    21,449.13/29,599.86 = 12,017.76/x
  3. Step 3: Cross multiply
    21,449.13x = 29,599.86 × 12,017.76
  4. Step 4: Simplify right side
    21,449.13x = 355,724,013.51
  5. Step 5: Solve for x
    x = 355,724,013.51/21,449.13
  6. Step 6: Final answer
    x = 16,584.54

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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.