Home / 21,317.50-29,431.84-19,075.48

Finding the Fourth Proportional to 21,317.50, 29,431.84 and 19,075.48

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Solution

The fourth proportional to 21,317.50, 29,431.84 and 19,075.48 is: 26,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.50 : 29,431.84 = 19,075.48 : x
  2. Step 2: Convert to fraction form
    21,317.50/29,431.84 = 19,075.48/x
  3. Step 3: Cross multiply
    21,317.50x = 29,431.84 × 19,075.48
  4. Step 4: Simplify right side
    21,317.50x = 561,426,453.02
  5. Step 5: Solve for x
    x = 561,426,453.02/21,317.50
  6. Step 6: Final answer
    x = 26,336.41

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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.