Home / 21,168.36-31,744.98-10,065.96

Finding the Fourth Proportional to 21,168.36, 31,744.98 and 10,065.96

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Solution

The fourth proportional to 21,168.36, 31,744.98 and 10,065.96 is: 15,095.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.36 : 31,744.98 = 10,065.96 : x
  2. Step 2: Convert to fraction form
    21,168.36/31,744.98 = 10,065.96/x
  3. Step 3: Cross multiply
    21,168.36x = 31,744.98 × 10,065.96
  4. Step 4: Simplify right side
    21,168.36x = 319,543,698.88
  5. Step 5: Solve for x
    x = 319,543,698.88/21,168.36
  6. Step 6: Final answer
    x = 15,095.35

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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.