Home / 21,162.24-29,205.02-11,603.16

Finding the Fourth Proportional to 21,162.24, 29,205.02 and 11,603.16

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Solution

The fourth proportional to 21,162.24, 29,205.02 and 11,603.16 is: 16,012.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.24 : 29,205.02 = 11,603.16 : x
  2. Step 2: Convert to fraction form
    21,162.24/29,205.02 = 11,603.16/x
  3. Step 3: Cross multiply
    21,162.24x = 29,205.02 × 11,603.16
  4. Step 4: Simplify right side
    21,162.24x = 338,870,519.86
  5. Step 5: Solve for x
    x = 338,870,519.86/21,162.24
  6. Step 6: Final answer
    x = 16,012.98

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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.