Home / 28,515.29-39,365.12-17,910.77

Finding the Fourth Proportional to 28,515.29, 39,365.12 and 17,910.77

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Solution

The fourth proportional to 28,515.29, 39,365.12 and 17,910.77 is: 24,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.29 : 39,365.12 = 17,910.77 : x
  2. Step 2: Convert to fraction form
    28,515.29/39,365.12 = 17,910.77/x
  3. Step 3: Cross multiply
    28,515.29x = 39,365.12 × 17,910.77
  4. Step 4: Simplify right side
    28,515.29x = 705,059,458.29
  5. Step 5: Solve for x
    x = 705,059,458.29/28,515.29
  6. Step 6: Final answer
    x = 24,725.67

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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.