Home / 30,586.33-42,222.09-18,653.95

Finding the Fourth Proportional to 30,586.33, 42,222.09 and 18,653.95

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Solution

The fourth proportional to 30,586.33, 42,222.09 and 18,653.95 is: 25,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.33 : 42,222.09 = 18,653.95 : x
  2. Step 2: Convert to fraction form
    30,586.33/42,222.09 = 18,653.95/x
  3. Step 3: Cross multiply
    30,586.33x = 42,222.09 × 18,653.95
  4. Step 4: Simplify right side
    30,586.33x = 787,608,755.76
  5. Step 5: Solve for x
    x = 787,608,755.76/30,586.33
  6. Step 6: Final answer
    x = 25,750.35

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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.