Home / 21,338.56-29,413.76-19,622.08

Finding the Fourth Proportional to 21,338.56, 29,413.76 and 19,622.08

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Solution

The fourth proportional to 21,338.56, 29,413.76 and 19,622.08 is: 27,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.56 : 29,413.76 = 19,622.08 : x
  2. Step 2: Convert to fraction form
    21,338.56/29,413.76 = 19,622.08/x
  3. Step 3: Cross multiply
    21,338.56x = 29,413.76 × 19,622.08
  4. Step 4: Simplify right side
    21,338.56x = 577,159,151.82
  5. Step 5: Solve for x
    x = 577,159,151.82/21,338.56
  6. Step 6: Final answer
    x = 27,047.71

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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.