Home / 21,422.17-29,603.27-16,107.76

Finding the Fourth Proportional to 21,422.17, 29,603.27 and 16,107.76

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Solution

The fourth proportional to 21,422.17, 29,603.27 and 16,107.76 is: 22,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.17 : 29,603.27 = 16,107.76 : x
  2. Step 2: Convert to fraction form
    21,422.17/29,603.27 = 16,107.76/x
  3. Step 3: Cross multiply
    21,422.17x = 29,603.27 × 16,107.76
  4. Step 4: Simplify right side
    21,422.17x = 476,842,368.38
  5. Step 5: Solve for x
    x = 476,842,368.38/21,422.17
  6. Step 6: Final answer
    x = 22,259.29

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Double scale
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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.