Home / 30,644.56-42,292.91-18,551.70

Finding the Fourth Proportional to 30,644.56, 42,292.91 and 18,551.70

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Solution

The fourth proportional to 30,644.56, 42,292.91 and 18,551.70 is: 25,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,644.56 : 42,292.91 = 18,551.70 : x
  2. Step 2: Convert to fraction form
    30,644.56/42,292.91 = 18,551.70/x
  3. Step 3: Cross multiply
    30,644.56x = 42,292.91 × 18,551.70
  4. Step 4: Simplify right side
    30,644.56x = 784,605,546.39
  5. Step 5: Solve for x
    x = 784,605,546.39/30,644.56
  6. Step 6: Final answer
    x = 25,603.42

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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.