Home / 21,467.28-29,622.02-11,907.05

Finding the Fourth Proportional to 21,467.28, 29,622.02 and 11,907.05

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Solution

The fourth proportional to 21,467.28, 29,622.02 and 11,907.05 is: 16,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.28 : 29,622.02 = 11,907.05 : x
  2. Step 2: Convert to fraction form
    21,467.28/29,622.02 = 11,907.05/x
  3. Step 3: Cross multiply
    21,467.28x = 29,622.02 × 11,907.05
  4. Step 4: Simplify right side
    21,467.28x = 352,710,977.06
  5. Step 5: Solve for x
    x = 352,710,977.06/21,467.28
  6. Step 6: Final answer
    x = 16,430.17

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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.