Home / 30,775.23-42,469.83-16,628.04

Finding the Fourth Proportional to 30,775.23, 42,469.83 and 16,628.04

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Solution

The fourth proportional to 30,775.23, 42,469.83 and 16,628.04 is: 22,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775.23 : 42,469.83 = 16,628.04 : x
  2. Step 2: Convert to fraction form
    30,775.23/42,469.83 = 16,628.04/x
  3. Step 3: Cross multiply
    30,775.23x = 42,469.83 × 16,628.04
  4. Step 4: Simplify right side
    30,775.23x = 706,190,032.03
  5. Step 5: Solve for x
    x = 706,190,032.03/30,775.23
  6. Step 6: Final answer
    x = 22,946.70

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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.