Home / 20,075.05-27,702.83-11,577.53

Finding the Fourth Proportional to 20,075.05, 27,702.83 and 11,577.53

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Solution

The fourth proportional to 20,075.05, 27,702.83 and 11,577.53 is: 15,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.05 : 27,702.83 = 11,577.53 : x
  2. Step 2: Convert to fraction form
    20,075.05/27,702.83 = 11,577.53/x
  3. Step 3: Cross multiply
    20,075.05x = 27,702.83 × 11,577.53
  4. Step 4: Simplify right side
    20,075.05x = 320,730,345.41
  5. Step 5: Solve for x
    x = 320,730,345.41/20,075.05
  6. Step 6: Final answer
    x = 15,976.57

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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.