Home / 28,263.70-39,004.27-15,515.03

Finding the Fourth Proportional to 28,263.70, 39,004.27 and 15,515.03

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Solution

The fourth proportional to 28,263.70, 39,004.27 and 15,515.03 is: 21,410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.70 : 39,004.27 = 15,515.03 : x
  2. Step 2: Convert to fraction form
    28,263.70/39,004.27 = 15,515.03/x
  3. Step 3: Cross multiply
    28,263.70x = 39,004.27 × 15,515.03
  4. Step 4: Simplify right side
    28,263.70x = 605,152,419.18
  5. Step 5: Solve for x
    x = 605,152,419.18/28,263.70
  6. Step 6: Final answer
    x = 21,410.94

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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.