Home / 28,727.73-39,645.08-15,981.32

Finding the Fourth Proportional to 28,727.73, 39,645.08 and 15,981.32

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Solution

The fourth proportional to 28,727.73, 39,645.08 and 15,981.32 is: 22,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.73 : 39,645.08 = 15,981.32 : x
  2. Step 2: Convert to fraction form
    28,727.73/39,645.08 = 15,981.32/x
  3. Step 3: Cross multiply
    28,727.73x = 39,645.08 × 15,981.32
  4. Step 4: Simplify right side
    28,727.73x = 633,580,630.00
  5. Step 5: Solve for x
    x = 633,580,630.00/28,727.73
  6. Step 6: Final answer
    x = 22,054.67

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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.