Home / 30,896.88-42,637.68-16,749.60

Finding the Fourth Proportional to 30,896.88, 42,637.68 and 16,749.60

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Solution

The fourth proportional to 30,896.88, 42,637.68 and 16,749.60 is: 23,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,896.88 : 42,637.68 = 16,749.60 : x
  2. Step 2: Convert to fraction form
    30,896.88/42,637.68 = 16,749.60/x
  3. Step 3: Cross multiply
    30,896.88x = 42,637.68 × 16,749.60
  4. Step 4: Simplify right side
    30,896.88x = 714,164,084.93
  5. Step 5: Solve for x
    x = 714,164,084.93/30,896.88
  6. Step 6: Final answer
    x = 23,114.44

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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.