Home / 21,031.14-31,543.46-6,241.36

Finding the Fourth Proportional to 21,031.14, 31,543.46 and 6,241.36

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Solution

The fourth proportional to 21,031.14, 31,543.46 and 6,241.36 is: 9,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.14 : 31,543.46 = 6,241.36 : x
  2. Step 2: Convert to fraction form
    21,031.14/31,543.46 = 6,241.36/x
  3. Step 3: Cross multiply
    21,031.14x = 31,543.46 × 6,241.36
  4. Step 4: Simplify right side
    21,031.14x = 196,874,089.51
  5. Step 5: Solve for x
    x = 196,874,089.51/21,031.14
  6. Step 6: Final answer
    x = 9,361.08

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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.