Home / 21,368.88-29,482.58-12,414.63

Finding the Fourth Proportional to 21,368.88, 29,482.58 and 12,414.63

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Solution

The fourth proportional to 21,368.88, 29,482.58 and 12,414.63 is: 17,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.88 : 29,482.58 = 12,414.63 : x
  2. Step 2: Convert to fraction form
    21,368.88/29,482.58 = 12,414.63/x
  3. Step 3: Cross multiply
    21,368.88x = 29,482.58 × 12,414.63
  4. Step 4: Simplify right side
    21,368.88x = 366,015,463.74
  5. Step 5: Solve for x
    x = 366,015,463.74/21,368.88
  6. Step 6: Final answer
    x = 17,128.43

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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.