Home / 18,420.03-25,405.92-14,433.21

Finding the Fourth Proportional to 18,420.03, 25,405.92 and 14,433.21

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Solution

The fourth proportional to 18,420.03, 25,405.92 and 14,433.21 is: 19,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.03 : 25,405.92 = 14,433.21 : x
  2. Step 2: Convert to fraction form
    18,420.03/25,405.92 = 14,433.21/x
  3. Step 3: Cross multiply
    18,420.03x = 25,405.92 × 14,433.21
  4. Step 4: Simplify right side
    18,420.03x = 366,688,978.60
  5. Step 5: Solve for x
    x = 366,688,978.60/18,420.03
  6. Step 6: Final answer
    x = 19,907.08

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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.