Home / 28,898.68-39,881.80-16,965.48

Finding the Fourth Proportional to 28,898.68, 39,881.80 and 16,965.48

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Solution

The fourth proportional to 28,898.68, 39,881.80 and 16,965.48 is: 23,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.68 : 39,881.80 = 16,965.48 : x
  2. Step 2: Convert to fraction form
    28,898.68/39,881.80 = 16,965.48/x
  3. Step 3: Cross multiply
    28,898.68x = 39,881.80 × 16,965.48
  4. Step 4: Simplify right side
    28,898.68x = 676,613,880.26
  5. Step 5: Solve for x
    x = 676,613,880.26/28,898.68
  6. Step 6: Final answer
    x = 23,413.31

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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.