Home / 21,561.93-29,745.63-15,584.13

Finding the Fourth Proportional to 21,561.93, 29,745.63 and 15,584.13

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Solution

The fourth proportional to 21,561.93, 29,745.63 and 15,584.13 is: 21,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.93 : 29,745.63 = 15,584.13 : x
  2. Step 2: Convert to fraction form
    21,561.93/29,745.63 = 15,584.13/x
  3. Step 3: Cross multiply
    21,561.93x = 29,745.63 × 15,584.13
  4. Step 4: Simplify right side
    21,561.93x = 463,559,764.85
  5. Step 5: Solve for x
    x = 463,559,764.85/21,561.93
  6. Step 6: Final answer
    x = 21,498.99

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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.