Home / 21,448.19-29,597.50-11,887.46

Finding the Fourth Proportional to 21,448.19, 29,597.50 and 11,887.46

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Solution

The fourth proportional to 21,448.19, 29,597.50 and 11,887.46 is: 16,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.19 : 29,597.50 = 11,887.46 : x
  2. Step 2: Convert to fraction form
    21,448.19/29,597.50 = 11,887.46/x
  3. Step 3: Cross multiply
    21,448.19x = 29,597.50 × 11,887.46
  4. Step 4: Simplify right side
    21,448.19x = 351,839,075.21
  5. Step 5: Solve for x
    x = 351,839,075.21/21,448.19
  6. Step 6: Final answer
    x = 16,404.14

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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.