Home / 21,769.58-30,009.90-16,984.16

Finding the Fourth Proportional to 21,769.58, 30,009.90 and 16,984.16

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Solution

The fourth proportional to 21,769.58, 30,009.90 and 16,984.16 is: 23,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.58 : 30,009.90 = 16,984.16 : x
  2. Step 2: Convert to fraction form
    21,769.58/30,009.90 = 16,984.16/x
  3. Step 3: Cross multiply
    21,769.58x = 30,009.90 × 16,984.16
  4. Step 4: Simplify right side
    21,769.58x = 509,692,943.18
  5. Step 5: Solve for x
    x = 509,692,943.18/21,769.58
  6. Step 6: Final answer
    x = 23,413.08

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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.