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Finding the Third Proportional to 15,582 and 18,030

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Solution

The third proportional to 15,582 and 18,030 is: 20,862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582 : 18,030 = 18,030 : x
  2. Step 2: Convert to fraction form
    15,582/18,030 = 18,030/x
  3. Step 3: Cross multiply
    15,582x = 18,030 × 18,030
  4. Step 4: Simplify right side
    15,582x = 325,080,900
  5. Step 5: Solve for x
    x = 325,080,900/15,582
  6. Step 6: Final answer
    x = 20,862.59

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.