Home / 28,313.65-39,069.44-15,564.73

Finding the Fourth Proportional to 28,313.65, 39,069.44 and 15,564.73

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Solution

The fourth proportional to 28,313.65, 39,069.44 and 15,564.73 is: 21,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.65 : 39,069.44 = 15,564.73 : x
  2. Step 2: Convert to fraction form
    28,313.65/39,069.44 = 15,564.73/x
  3. Step 3: Cross multiply
    28,313.65x = 39,069.44 × 15,564.73
  4. Step 4: Simplify right side
    28,313.65x = 608,105,284.85
  5. Step 5: Solve for x
    x = 608,105,284.85/28,313.65
  6. Step 6: Final answer
    x = 21,477.46

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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.