Home / 21,075.36-31,596.40-14,481.96

Finding the Fourth Proportional to 21,075.36, 31,596.40 and 14,481.96

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Solution

The fourth proportional to 21,075.36, 31,596.40 and 14,481.96 is: 21,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.36 : 31,596.40 = 14,481.96 : x
  2. Step 2: Convert to fraction form
    21,075.36/31,596.40 = 14,481.96/x
  3. Step 3: Cross multiply
    21,075.36x = 31,596.40 × 14,481.96
  4. Step 4: Simplify right side
    21,075.36x = 457,577,800.94
  5. Step 5: Solve for x
    x = 457,577,800.94/21,075.36
  6. Step 6: Final answer
    x = 21,711.51

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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.