Home / 28,678.82-39,591.16-17,929.67

Finding the Fourth Proportional to 28,678.82, 39,591.16 and 17,929.67

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Solution

The fourth proportional to 28,678.82, 39,591.16 and 17,929.67 is: 24,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.82 : 39,591.16 = 17,929.67 : x
  2. Step 2: Convert to fraction form
    28,678.82/39,591.16 = 17,929.67/x
  3. Step 3: Cross multiply
    28,678.82x = 39,591.16 × 17,929.67
  4. Step 4: Simplify right side
    28,678.82x = 709,856,235.76
  5. Step 5: Solve for x
    x = 709,856,235.76/28,678.82
  6. Step 6: Final answer
    x = 24,751.93

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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.