Home / 21,783.04-30,077.52-16,739.30

Finding the Fourth Proportional to 21,783.04, 30,077.52 and 16,739.30

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Solution

The fourth proportional to 21,783.04, 30,077.52 and 16,739.30 is: 23,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.04 : 30,077.52 = 16,739.30 : x
  2. Step 2: Convert to fraction form
    21,783.04/30,077.52 = 16,739.30/x
  3. Step 3: Cross multiply
    21,783.04x = 30,077.52 × 16,739.30
  4. Step 4: Simplify right side
    21,783.04x = 503,476,630.54
  5. Step 5: Solve for x
    x = 503,476,630.54/21,783.04
  6. Step 6: Final answer
    x = 23,113.25

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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.