Home / 17,439.76-26,111-13,323.28

Finding the Fourth Proportional to 17,439.76, 26,111 and 13,323.28

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Solution

The fourth proportional to 17,439.76, 26,111 and 13,323.28 is: 19,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,439.76 : 26,111 = 13,323.28 : x
  2. Step 2: Convert to fraction form
    17,439.76/26,111 = 13,323.28/x
  3. Step 3: Cross multiply
    17,439.76x = 26,111 × 13,323.28
  4. Step 4: Simplify right side
    17,439.76x = 347,884,164.08
  5. Step 5: Solve for x
    x = 347,884,164.08/17,439.76
  6. Step 6: Final answer
    x = 19,947.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.