Home / 28,290.92-39,041.73-15,544.37

Finding the Fourth Proportional to 28,290.92, 39,041.73 and 15,544.37

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Solution

The fourth proportional to 28,290.92, 39,041.73 and 15,544.37 is: 21,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.92 : 39,041.73 = 15,544.37 : x
  2. Step 2: Convert to fraction form
    28,290.92/39,041.73 = 15,544.37/x
  3. Step 3: Cross multiply
    28,290.92x = 39,041.73 × 15,544.37
  4. Step 4: Simplify right side
    28,290.92x = 606,878,901.35
  5. Step 5: Solve for x
    x = 606,878,901.35/28,290.92
  6. Step 6: Final answer
    x = 21,451.37

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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.