Home / 27,857.23-38,442.50-15,281.71

Finding the Fourth Proportional to 27,857.23, 38,442.50 and 15,281.71

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Solution

The fourth proportional to 27,857.23, 38,442.50 and 15,281.71 is: 21,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.23 : 38,442.50 = 15,281.71 : x
  2. Step 2: Convert to fraction form
    27,857.23/38,442.50 = 15,281.71/x
  3. Step 3: Cross multiply
    27,857.23x = 38,442.50 × 15,281.71
  4. Step 4: Simplify right side
    27,857.23x = 587,467,021.47
  5. Step 5: Solve for x
    x = 587,467,021.47/27,857.23
  6. Step 6: Final answer
    x = 21,088.50

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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.