Home / 21,606.40-29,817.99-12,654.58

Finding the Fourth Proportional to 21,606.40, 29,817.99 and 12,654.58

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Solution

The fourth proportional to 21,606.40, 29,817.99 and 12,654.58 is: 17,464.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.40 : 29,817.99 = 12,654.58 : x
  2. Step 2: Convert to fraction form
    21,606.40/29,817.99 = 12,654.58/x
  3. Step 3: Cross multiply
    21,606.40x = 29,817.99 × 12,654.58
  4. Step 4: Simplify right side
    21,606.40x = 377,334,139.89
  5. Step 5: Solve for x
    x = 377,334,139.89/21,606.40
  6. Step 6: Final answer
    x = 17,464.00

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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.