Home / 19,631.51-27,077.76-12,914.99

Finding the Fourth Proportional to 19,631.51, 27,077.76 and 12,914.99

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Solution

The fourth proportional to 19,631.51, 27,077.76 and 12,914.99 is: 17,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.51 : 27,077.76 = 12,914.99 : x
  2. Step 2: Convert to fraction form
    19,631.51/27,077.76 = 12,914.99/x
  3. Step 3: Cross multiply
    19,631.51x = 27,077.76 × 12,914.99
  4. Step 4: Simplify right side
    19,631.51x = 349,708,965.78
  5. Step 5: Solve for x
    x = 349,708,965.78/19,631.51
  6. Step 6: Final answer
    x = 17,813.66

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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.