Home / 21,479.58-29,633.05-14,408.28

Finding the Fourth Proportional to 21,479.58, 29,633.05 and 14,408.28

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Solution

The fourth proportional to 21,479.58, 29,633.05 and 14,408.28 is: 19,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.58 : 29,633.05 = 14,408.28 : x
  2. Step 2: Convert to fraction form
    21,479.58/29,633.05 = 14,408.28/x
  3. Step 3: Cross multiply
    21,479.58x = 29,633.05 × 14,408.28
  4. Step 4: Simplify right side
    21,479.58x = 426,961,281.65
  5. Step 5: Solve for x
    x = 426,961,281.65/21,479.58
  6. Step 6: Final answer
    x = 19,877.54

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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.