Home / 25,557.23-35,281.71-19,801.78

Finding the Fourth Proportional to 25,557.23, 35,281.71 and 19,801.78

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Solution

The fourth proportional to 25,557.23, 35,281.71 and 19,801.78 is: 27,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,557.23 : 35,281.71 = 19,801.78 : x
  2. Step 2: Convert to fraction form
    25,557.23/35,281.71 = 19,801.78/x
  3. Step 3: Cross multiply
    25,557.23x = 35,281.71 × 19,801.78
  4. Step 4: Simplify right side
    25,557.23x = 698,640,659.44
  5. Step 5: Solve for x
    x = 698,640,659.44/25,557.23
  6. Step 6: Final answer
    x = 27,336.32

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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.