Home / 21,090.56-31,625.10-7,045.56

Finding the Fourth Proportional to 21,090.56, 31,625.10 and 7,045.56

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Solution

The fourth proportional to 21,090.56, 31,625.10 and 7,045.56 is: 10,564.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.56 : 31,625.10 = 7,045.56 : x
  2. Step 2: Convert to fraction form
    21,090.56/31,625.10 = 7,045.56/x
  3. Step 3: Cross multiply
    21,090.56x = 31,625.10 × 7,045.56
  4. Step 4: Simplify right side
    21,090.56x = 222,816,539.56
  5. Step 5: Solve for x
    x = 222,816,539.56/21,090.56
  6. Step 6: Final answer
    x = 10,564.75

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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.