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Finding the Fourth Proportional to 25,420.95, 35,075.75 and 16,467.21

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Solution

The fourth proportional to 25,420.95, 35,075.75 and 16,467.21 is: 22,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.95 : 35,075.75 = 16,467.21 : x
  2. Step 2: Convert to fraction form
    25,420.95/35,075.75 = 16,467.21/x
  3. Step 3: Cross multiply
    25,420.95x = 35,075.75 × 16,467.21
  4. Step 4: Simplify right side
    25,420.95x = 577,599,658.82
  5. Step 5: Solve for x
    x = 577,599,658.82/25,420.95
  6. Step 6: Final answer
    x = 22,721.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.