Home / 30,889.56-42,627.60-16,742.46

Finding the Fourth Proportional to 30,889.56, 42,627.60 and 16,742.46

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Solution

The fourth proportional to 30,889.56, 42,627.60 and 16,742.46 is: 23,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.56 : 42,627.60 = 16,742.46 : x
  2. Step 2: Convert to fraction form
    30,889.56/42,627.60 = 16,742.46/x
  3. Step 3: Cross multiply
    30,889.56x = 42,627.60 × 16,742.46
  4. Step 4: Simplify right side
    30,889.56x = 713,690,887.90
  5. Step 5: Solve for x
    x = 713,690,887.90/30,889.56
  6. Step 6: Final answer
    x = 23,104.60

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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.