Home / 28,647.59-39,533.06-15,900.03

Finding the Fourth Proportional to 28,647.59, 39,533.06 and 15,900.03

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Solution

The fourth proportional to 28,647.59, 39,533.06 and 15,900.03 is: 21,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.59 : 39,533.06 = 15,900.03 : x
  2. Step 2: Convert to fraction form
    28,647.59/39,533.06 = 15,900.03/x
  3. Step 3: Cross multiply
    28,647.59x = 39,533.06 × 15,900.03
  4. Step 4: Simplify right side
    28,647.59x = 628,576,879.74
  5. Step 5: Solve for x
    x = 628,576,879.74/28,647.59
  6. Step 6: Final answer
    x = 21,941.70

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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.