Home / 28,453.49-39,265.81-15,706.67

Finding the Fourth Proportional to 28,453.49, 39,265.81 and 15,706.67

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Solution

The fourth proportional to 28,453.49, 39,265.81 and 15,706.67 is: 21,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.49 : 39,265.81 = 15,706.67 : x
  2. Step 2: Convert to fraction form
    28,453.49/39,265.81 = 15,706.67/x
  3. Step 3: Cross multiply
    28,453.49x = 39,265.81 × 15,706.67
  4. Step 4: Simplify right side
    28,453.49x = 616,735,119.95
  5. Step 5: Solve for x
    x = 616,735,119.95/28,453.49
  6. Step 6: Final answer
    x = 21,675.20

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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.