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Finding the Fourth Proportional to 21,068.01, 29,073.06 and 11,507.58

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Solution

The fourth proportional to 21,068.01, 29,073.06 and 11,507.58 is: 15,880.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.01 : 29,073.06 = 11,507.58 : x
  2. Step 2: Convert to fraction form
    21,068.01/29,073.06 = 11,507.58/x
  3. Step 3: Cross multiply
    21,068.01x = 29,073.06 × 11,507.58
  4. Step 4: Simplify right side
    21,068.01x = 334,560,563.79
  5. Step 5: Solve for x
    x = 334,560,563.79/21,068.01
  6. Step 6: Final answer
    x = 15,880.03

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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.