Home / 19,947.76-27,531.93-11,455.63

Finding the Fourth Proportional to 19,947.76, 27,531.93 and 11,455.63

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Solution

The fourth proportional to 19,947.76, 27,531.93 and 11,455.63 is: 15,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.76 : 27,531.93 = 11,455.63 : x
  2. Step 2: Convert to fraction form
    19,947.76/27,531.93 = 11,455.63/x
  3. Step 3: Cross multiply
    19,947.76x = 27,531.93 × 11,455.63
  4. Step 4: Simplify right side
    19,947.76x = 315,395,603.27
  5. Step 5: Solve for x
    x = 315,395,603.27/19,947.76
  6. Step 6: Final answer
    x = 15,811.08

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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.