Home / 21,090.74-31,642.68-6,300.24

Finding the Fourth Proportional to 21,090.74, 31,642.68 and 6,300.24

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Solution

The fourth proportional to 21,090.74, 31,642.68 and 6,300.24 is: 9,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.74 : 31,642.68 = 6,300.24 : x
  2. Step 2: Convert to fraction form
    21,090.74/31,642.68 = 6,300.24/x
  3. Step 3: Cross multiply
    21,090.74x = 31,642.68 × 6,300.24
  4. Step 4: Simplify right side
    21,090.74x = 199,356,383.21
  5. Step 5: Solve for x
    x = 199,356,383.21/21,090.74
  6. Step 6: Final answer
    x = 9,452.32

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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.