Home / 21,532.05-29,695.07-13,971.17

Finding the Fourth Proportional to 21,532.05, 29,695.07 and 13,971.17

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Solution

The fourth proportional to 21,532.05, 29,695.07 and 13,971.17 is: 19,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,532.05 : 29,695.07 = 13,971.17 : x
  2. Step 2: Convert to fraction form
    21,532.05/29,695.07 = 13,971.17/x
  3. Step 3: Cross multiply
    21,532.05x = 29,695.07 × 13,971.17
  4. Step 4: Simplify right side
    21,532.05x = 414,874,652.80
  5. Step 5: Solve for x
    x = 414,874,652.80/21,532.05
  6. Step 6: Final answer
    x = 19,267.77

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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.