Home / 21,204.00-29,265.28-15,853.28

Finding the Fourth Proportional to 21,204.00, 29,265.28 and 15,853.28

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Solution

The fourth proportional to 21,204.00, 29,265.28 and 15,853.28 is: 21,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.00 : 29,265.28 = 15,853.28 : x
  2. Step 2: Convert to fraction form
    21,204.00/29,265.28 = 15,853.28/x
  3. Step 3: Cross multiply
    21,204.00x = 29,265.28 × 15,853.28
  4. Step 4: Simplify right side
    21,204.00x = 463,950,678.12
  5. Step 5: Solve for x
    x = 463,950,678.12/21,204.00
  6. Step 6: Final answer
    x = 21,880.34

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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.