Home / 19,828.08-27,360.81-11,870.13

Finding the Fourth Proportional to 19,828.08, 27,360.81 and 11,870.13

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Solution

The fourth proportional to 19,828.08, 27,360.81 and 11,870.13 is: 16,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.08 : 27,360.81 = 11,870.13 : x
  2. Step 2: Convert to fraction form
    19,828.08/27,360.81 = 11,870.13/x
  3. Step 3: Cross multiply
    19,828.08x = 27,360.81 × 11,870.13
  4. Step 4: Simplify right side
    19,828.08x = 324,776,371.61
  5. Step 5: Solve for x
    x = 324,776,371.61/19,828.08
  6. Step 6: Final answer
    x = 16,379.62

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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.