Home / 21,029.72-29,017.73-12,075.98

Finding the Fourth Proportional to 21,029.72, 29,017.73 and 12,075.98

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Solution

The fourth proportional to 21,029.72, 29,017.73 and 12,075.98 is: 16,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.72 : 29,017.73 = 12,075.98 : x
  2. Step 2: Convert to fraction form
    21,029.72/29,017.73 = 12,075.98/x
  3. Step 3: Cross multiply
    21,029.72x = 29,017.73 × 12,075.98
  4. Step 4: Simplify right side
    21,029.72x = 350,417,466.75
  5. Step 5: Solve for x
    x = 350,417,466.75/21,029.72
  6. Step 6: Final answer
    x = 16,662.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.