Home / 28,560.43-39,413.39-15,985.18

Finding the Fourth Proportional to 28,560.43, 39,413.39 and 15,985.18

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Solution

The fourth proportional to 28,560.43, 39,413.39 and 15,985.18 is: 22,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.43 : 39,413.39 = 15,985.18 : x
  2. Step 2: Convert to fraction form
    28,560.43/39,413.39 = 15,985.18/x
  3. Step 3: Cross multiply
    28,560.43x = 39,413.39 × 15,985.18
  4. Step 4: Simplify right side
    28,560.43x = 630,030,053.63
  5. Step 5: Solve for x
    x = 630,030,053.63/28,560.43
  6. Step 6: Final answer
    x = 22,059.54

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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.