Home / 19,935.06-27,502.11-12,378.84

Finding the Fourth Proportional to 19,935.06, 27,502.11 and 12,378.84

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Solution

The fourth proportional to 19,935.06, 27,502.11 and 12,378.84 is: 17,077.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.06 : 27,502.11 = 12,378.84 : x
  2. Step 2: Convert to fraction form
    19,935.06/27,502.11 = 12,378.84/x
  3. Step 3: Cross multiply
    19,935.06x = 27,502.11 × 12,378.84
  4. Step 4: Simplify right side
    19,935.06x = 340,444,219.35
  5. Step 5: Solve for x
    x = 340,444,219.35/19,935.06
  6. Step 6: Final answer
    x = 17,077.66

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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.