Home / 28,278.82-42,445.91-28,147.26

Finding the Fourth Proportional to 28,278.82, 42,445.91 and 28,147.26

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Solution

The fourth proportional to 28,278.82, 42,445.91 and 28,147.26 is: 42,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.82 : 42,445.91 = 28,147.26 : x
  2. Step 2: Convert to fraction form
    28,278.82/42,445.91 = 28,147.26/x
  3. Step 3: Cross multiply
    28,278.82x = 42,445.91 × 28,147.26
  4. Step 4: Simplify right side
    28,278.82x = 1,194,736,075.60
  5. Step 5: Solve for x
    x = 1,194,736,075.60/28,278.82
  6. Step 6: Final answer
    x = 42,248.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.