Home / 15,901.60-21,954.90-14,217.64

Finding the Fourth Proportional to 15,901.60, 21,954.90 and 14,217.64

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Solution

The fourth proportional to 15,901.60, 21,954.90 and 14,217.64 is: 19,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.60 : 21,954.90 = 14,217.64 : x
  2. Step 2: Convert to fraction form
    15,901.60/21,954.90 = 14,217.64/x
  3. Step 3: Cross multiply
    15,901.60x = 21,954.90 × 14,217.64
  4. Step 4: Simplify right side
    15,901.60x = 312,146,864.44
  5. Step 5: Solve for x
    x = 312,146,864.44/15,901.60
  6. Step 6: Final answer
    x = 19,629.90

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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.