Home / 21,064.77-29,075.19-13,102.26

Finding the Fourth Proportional to 21,064.77, 29,075.19 and 13,102.26

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Solution

The fourth proportional to 21,064.77, 29,075.19 and 13,102.26 is: 18,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.77 : 29,075.19 = 13,102.26 : x
  2. Step 2: Convert to fraction form
    21,064.77/29,075.19 = 13,102.26/x
  3. Step 3: Cross multiply
    21,064.77x = 29,075.19 × 13,102.26
  4. Step 4: Simplify right side
    21,064.77x = 380,950,698.93
  5. Step 5: Solve for x
    x = 380,950,698.93/21,064.77
  6. Step 6: Final answer
    x = 18,084.73

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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.