Home / 28,518.37-39,355.44-15,943.12

Finding the Fourth Proportional to 28,518.37, 39,355.44 and 15,943.12

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Solution

The fourth proportional to 28,518.37, 39,355.44 and 15,943.12 is: 22,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.37 : 39,355.44 = 15,943.12 : x
  2. Step 2: Convert to fraction form
    28,518.37/39,355.44 = 15,943.12/x
  3. Step 3: Cross multiply
    28,518.37x = 39,355.44 × 15,943.12
  4. Step 4: Simplify right side
    28,518.37x = 627,448,226.08
  5. Step 5: Solve for x
    x = 627,448,226.08/28,518.37
  6. Step 6: Final answer
    x = 22,001.55

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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.