Home / 21,474.12-29,603.16-15,081.24

Finding the Fourth Proportional to 21,474.12, 29,603.16 and 15,081.24

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Solution

The fourth proportional to 21,474.12, 29,603.16 and 15,081.24 is: 20,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.12 : 29,603.16 = 15,081.24 : x
  2. Step 2: Convert to fraction form
    21,474.12/29,603.16 = 15,081.24/x
  3. Step 3: Cross multiply
    21,474.12x = 29,603.16 × 15,081.24
  4. Step 4: Simplify right side
    21,474.12x = 446,452,360.72
  5. Step 5: Solve for x
    x = 446,452,360.72/21,474.12
  6. Step 6: Final answer
    x = 20,790.25

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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.