Home / 21,313.04-31,969.98-7,276.28

Finding the Fourth Proportional to 21,313.04, 31,969.98 and 7,276.28

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Solution

The fourth proportional to 21,313.04, 31,969.98 and 7,276.28 is: 10,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.04 : 31,969.98 = 7,276.28 : x
  2. Step 2: Convert to fraction form
    21,313.04/31,969.98 = 7,276.28/x
  3. Step 3: Cross multiply
    21,313.04x = 31,969.98 × 7,276.28
  4. Step 4: Simplify right side
    21,313.04x = 232,622,526.07
  5. Step 5: Solve for x
    x = 232,622,526.07/21,313.04
  6. Step 6: Final answer
    x = 10,914.56

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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.