Home / 19,886.58-27,444.06-11,389.50

Finding the Fourth Proportional to 19,886.58, 27,444.06 and 11,389.50

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Solution

The fourth proportional to 19,886.58, 27,444.06 and 11,389.50 is: 15,717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.58 : 27,444.06 = 11,389.50 : x
  2. Step 2: Convert to fraction form
    19,886.58/27,444.06 = 11,389.50/x
  3. Step 3: Cross multiply
    19,886.58x = 27,444.06 × 11,389.50
  4. Step 4: Simplify right side
    19,886.58x = 312,574,121.37
  5. Step 5: Solve for x
    x = 312,574,121.37/19,886.58
  6. Step 6: Final answer
    x = 15,717.84

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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.