Home / 25,886.97-35,681-18,323.60

Finding the Fourth Proportional to 25,886.97, 35,681 and 18,323.60

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Solution

The fourth proportional to 25,886.97, 35,681 and 18,323.60 is: 25,256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.97 : 35,681 = 18,323.60 : x
  2. Step 2: Convert to fraction form
    25,886.97/35,681 = 18,323.60/x
  3. Step 3: Cross multiply
    25,886.97x = 35,681 × 18,323.60
  4. Step 4: Simplify right side
    25,886.97x = 653,804,371.60
  5. Step 5: Solve for x
    x = 653,804,371.60/25,886.97
  6. Step 6: Final answer
    x = 25,256.12

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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.