Home / 21,219.98-29,284.34-14,330.52

Finding the Fourth Proportional to 21,219.98, 29,284.34 and 14,330.52

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Solution

The fourth proportional to 21,219.98, 29,284.34 and 14,330.52 is: 19,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.98 : 29,284.34 = 14,330.52 : x
  2. Step 2: Convert to fraction form
    21,219.98/29,284.34 = 14,330.52/x
  3. Step 3: Cross multiply
    21,219.98x = 29,284.34 × 14,330.52
  4. Step 4: Simplify right side
    21,219.98x = 419,659,748.40
  5. Step 5: Solve for x
    x = 419,659,748.40/21,219.98
  6. Step 6: Final answer
    x = 19,776.64

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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.