Home / 28,313.53-39,072.94-15,566.81

Finding the Fourth Proportional to 28,313.53, 39,072.94 and 15,566.81

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Solution

The fourth proportional to 28,313.53, 39,072.94 and 15,566.81 is: 21,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.53 : 39,072.94 = 15,566.81 : x
  2. Step 2: Convert to fraction form
    28,313.53/39,072.94 = 15,566.81/x
  3. Step 3: Cross multiply
    28,313.53x = 39,072.94 × 15,566.81
  4. Step 4: Simplify right side
    28,313.53x = 608,240,759.92
  5. Step 5: Solve for x
    x = 608,240,759.92/28,313.53
  6. Step 6: Final answer
    x = 21,482.34

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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.