Home / 27,750.49-38,270.12-18,186.89

Finding the Fourth Proportional to 27,750.49, 38,270.12 and 18,186.89

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Solution

The fourth proportional to 27,750.49, 38,270.12 and 18,186.89 is: 25,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.49 : 38,270.12 = 18,186.89 : x
  2. Step 2: Convert to fraction form
    27,750.49/38,270.12 = 18,186.89/x
  3. Step 3: Cross multiply
    27,750.49x = 38,270.12 × 18,186.89
  4. Step 4: Simplify right side
    27,750.49x = 696,014,467.47
  5. Step 5: Solve for x
    x = 696,014,467.47/27,750.49
  6. Step 6: Final answer
    x = 25,081.16

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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.