Home / 21,055.49-31,572.67-7,010.57

Finding the Fourth Proportional to 21,055.49, 31,572.67 and 7,010.57

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Solution

The fourth proportional to 21,055.49, 31,572.67 and 7,010.57 is: 10,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.49 : 31,572.67 = 7,010.57 : x
  2. Step 2: Convert to fraction form
    21,055.49/31,572.67 = 7,010.57/x
  3. Step 3: Cross multiply
    21,055.49x = 31,572.67 × 7,010.57
  4. Step 4: Simplify right side
    21,055.49x = 221,342,413.12
  5. Step 5: Solve for x
    x = 221,342,413.12/21,055.49
  6. Step 6: Final answer
    x = 10,512.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.