Home / 19,928.77-29,894.87-5,137.56

Finding the Fourth Proportional to 19,928.77, 29,894.87 and 5,137.56

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Solution

The fourth proportional to 19,928.77, 29,894.87 and 5,137.56 is: 7,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.77 : 29,894.87 = 5,137.56 : x
  2. Step 2: Convert to fraction form
    19,928.77/29,894.87 = 5,137.56/x
  3. Step 3: Cross multiply
    19,928.77x = 29,894.87 × 5,137.56
  4. Step 4: Simplify right side
    19,928.77x = 153,586,701.16
  5. Step 5: Solve for x
    x = 153,586,701.16/19,928.77
  6. Step 6: Final answer
    x = 7,706.78

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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.