Home / 28,413.76-42,640.08-14,572.48

Finding the Fourth Proportional to 28,413.76, 42,640.08 and 14,572.48

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Solution

The fourth proportional to 28,413.76, 42,640.08 and 14,572.48 is: 21,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.76 : 42,640.08 = 14,572.48 : x
  2. Step 2: Convert to fraction form
    28,413.76/42,640.08 = 14,572.48/x
  3. Step 3: Cross multiply
    28,413.76x = 42,640.08 × 14,572.48
  4. Step 4: Simplify right side
    28,413.76x = 621,371,713.00
  5. Step 5: Solve for x
    x = 621,371,713.00/28,413.76
  6. Step 6: Final answer
    x = 21,868.69

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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.