Home / 21,482.96-29,644.54-12,531.24

Finding the Fourth Proportional to 21,482.96, 29,644.54 and 12,531.24

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Solution

The fourth proportional to 21,482.96, 29,644.54 and 12,531.24 is: 17,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.96 : 29,644.54 = 12,531.24 : x
  2. Step 2: Convert to fraction form
    21,482.96/29,644.54 = 12,531.24/x
  3. Step 3: Cross multiply
    21,482.96x = 29,644.54 × 12,531.24
  4. Step 4: Simplify right side
    21,482.96x = 371,482,814.10
  5. Step 5: Solve for x
    x = 371,482,814.10/21,482.96
  6. Step 6: Final answer
    x = 17,291.98

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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.