Home / 28,552.64-39,400.74-15,804.96

Finding the Fourth Proportional to 28,552.64, 39,400.74 and 15,804.96

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Solution

The fourth proportional to 28,552.64, 39,400.74 and 15,804.96 is: 21,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.64 : 39,400.74 = 15,804.96 : x
  2. Step 2: Convert to fraction form
    28,552.64/39,400.74 = 15,804.96/x
  3. Step 3: Cross multiply
    28,552.64x = 39,400.74 × 15,804.96
  4. Step 4: Simplify right side
    28,552.64x = 622,727,119.67
  5. Step 5: Solve for x
    x = 622,727,119.67/28,552.64
  6. Step 6: Final answer
    x = 21,809.79

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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.