Home / 20,291.49-30,435.32-14,393.66

Finding the Fourth Proportional to 20,291.49, 30,435.32 and 14,393.66

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Solution

The fourth proportional to 20,291.49, 30,435.32 and 14,393.66 is: 21,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.49 : 30,435.32 = 14,393.66 : x
  2. Step 2: Convert to fraction form
    20,291.49/30,435.32 = 14,393.66/x
  3. Step 3: Cross multiply
    20,291.49x = 30,435.32 × 14,393.66
  4. Step 4: Simplify right side
    20,291.49x = 438,075,531.88
  5. Step 5: Solve for x
    x = 438,075,531.88/20,291.49
  6. Step 6: Final answer
    x = 21,589.13

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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.