Home / 26,878.36-37,075.00-21,211.30

Finding the Fourth Proportional to 26,878.36, 37,075.00 and 21,211.30

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Solution

The fourth proportional to 26,878.36, 37,075.00 and 21,211.30 is: 29,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,878.36 : 37,075.00 = 21,211.30 : x
  2. Step 2: Convert to fraction form
    26,878.36/37,075.00 = 21,211.30/x
  3. Step 3: Cross multiply
    26,878.36x = 37,075.00 × 21,211.30
  4. Step 4: Simplify right side
    26,878.36x = 786,408,656.07
  5. Step 5: Solve for x
    x = 786,408,656.07/26,878.36
  6. Step 6: Final answer
    x = 29,258.06

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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.