Home / 19,718.84-29,578.14-4,927.68

Finding the Fourth Proportional to 19,718.84, 29,578.14 and 4,927.68

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Solution

The fourth proportional to 19,718.84, 29,578.14 and 4,927.68 is: 7,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.84 : 29,578.14 = 4,927.68 : x
  2. Step 2: Convert to fraction form
    19,718.84/29,578.14 = 4,927.68/x
  3. Step 3: Cross multiply
    19,718.84x = 29,578.14 × 4,927.68
  4. Step 4: Simplify right side
    19,718.84x = 145,751,608.92
  5. Step 5: Solve for x
    x = 145,751,608.92/19,718.84
  6. Step 6: Final answer
    x = 7,391.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.