Home / 21,377.56-32,075.70-11,379.92

Finding the Fourth Proportional to 21,377.56, 32,075.70 and 11,379.92

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Solution

The fourth proportional to 21,377.56, 32,075.70 and 11,379.92 is: 17,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.56 : 32,075.70 = 11,379.92 : x
  2. Step 2: Convert to fraction form
    21,377.56/32,075.70 = 11,379.92/x
  3. Step 3: Cross multiply
    21,377.56x = 32,075.70 × 11,379.92
  4. Step 4: Simplify right side
    21,377.56x = 365,018,899.94
  5. Step 5: Solve for x
    x = 365,018,899.94/21,377.56
  6. Step 6: Final answer
    x = 17,074.86

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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.