Home / 21,313.41-31,970.07-5,731.05

Finding the Fourth Proportional to 21,313.41, 31,970.07 and 5,731.05

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Solution

The fourth proportional to 21,313.41, 31,970.07 and 5,731.05 is: 8,596.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.41 : 31,970.07 = 5,731.05 : x
  2. Step 2: Convert to fraction form
    21,313.41/31,970.07 = 5,731.05/x
  3. Step 3: Cross multiply
    21,313.41x = 31,970.07 × 5,731.05
  4. Step 4: Simplify right side
    21,313.41x = 183,222,069.67
  5. Step 5: Solve for x
    x = 183,222,069.67/21,313.41
  6. Step 6: Final answer
    x = 8,596.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.