Home / 27,765.46-38,316.22-15,018.65

Finding the Fourth Proportional to 27,765.46, 38,316.22 and 15,018.65

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Solution

The fourth proportional to 27,765.46, 38,316.22 and 15,018.65 is: 20,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.46 : 38,316.22 = 15,018.65 : x
  2. Step 2: Convert to fraction form
    27,765.46/38,316.22 = 15,018.65/x
  3. Step 3: Cross multiply
    27,765.46x = 38,316.22 × 15,018.65
  4. Step 4: Simplify right side
    27,765.46x = 575,457,897.50
  5. Step 5: Solve for x
    x = 575,457,897.50/27,765.46
  6. Step 6: Final answer
    x = 20,725.67

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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.