Home / 19,705.72-27,183.76-13,332.58

Finding the Fourth Proportional to 19,705.72, 27,183.76 and 13,332.58

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Solution

The fourth proportional to 19,705.72, 27,183.76 and 13,332.58 is: 18,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.72 : 27,183.76 = 13,332.58 : x
  2. Step 2: Convert to fraction form
    19,705.72/27,183.76 = 13,332.58/x
  3. Step 3: Cross multiply
    19,705.72x = 27,183.76 × 13,332.58
  4. Step 4: Simplify right side
    19,705.72x = 362,429,654.90
  5. Step 5: Solve for x
    x = 362,429,654.90/19,705.72
  6. Step 6: Final answer
    x = 18,392.10

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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.