Home / 30,622.94-42,259.46-19,299.75

Finding the Fourth Proportional to 30,622.94, 42,259.46 and 19,299.75

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Solution

The fourth proportional to 30,622.94, 42,259.46 and 19,299.75 is: 26,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.94 : 42,259.46 = 19,299.75 : x
  2. Step 2: Convert to fraction form
    30,622.94/42,259.46 = 19,299.75/x
  3. Step 3: Cross multiply
    30,622.94x = 42,259.46 × 19,299.75
  4. Step 4: Simplify right side
    30,622.94x = 815,596,758.16
  5. Step 5: Solve for x
    x = 815,596,758.16/30,622.94
  6. Step 6: Final answer
    x = 26,633.52

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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.