Home / 27,526.10-38,001.78-18,122

Finding the Fourth Proportional to 27,526.10, 38,001.78 and 18,122

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Solution

The fourth proportional to 27,526.10, 38,001.78 and 18,122 is: 25,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,526.10 : 38,001.78 = 18,122 : x
  2. Step 2: Convert to fraction form
    27,526.10/38,001.78 = 18,122/x
  3. Step 3: Cross multiply
    27,526.10x = 38,001.78 × 18,122
  4. Step 4: Simplify right side
    27,526.10x = 688,668,257.16
  5. Step 5: Solve for x
    x = 688,668,257.16/27,526.10
  6. Step 6: Final answer
    x = 25,018.74

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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.