Home / 25,718.27-35,511.35-19,740.47

Finding the Fourth Proportional to 25,718.27, 35,511.35 and 19,740.47

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Solution

The fourth proportional to 25,718.27, 35,511.35 and 19,740.47 is: 27,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.27 : 35,511.35 = 19,740.47 : x
  2. Step 2: Convert to fraction form
    25,718.27/35,511.35 = 19,740.47/x
  3. Step 3: Cross multiply
    25,718.27x = 35,511.35 × 19,740.47
  4. Step 4: Simplify right side
    25,718.27x = 701,010,640.63
  5. Step 5: Solve for x
    x = 701,010,640.63/25,718.27
  6. Step 6: Final answer
    x = 27,257.30

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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.