Home / 19,972.24-27,555.60-11,587.12

Finding the Fourth Proportional to 19,972.24, 27,555.60 and 11,587.12

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Solution

The fourth proportional to 19,972.24, 27,555.60 and 11,587.12 is: 15,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.24 : 27,555.60 = 11,587.12 : x
  2. Step 2: Convert to fraction form
    19,972.24/27,555.60 = 11,587.12/x
  3. Step 3: Cross multiply
    19,972.24x = 27,555.60 × 11,587.12
  4. Step 4: Simplify right side
    19,972.24x = 319,290,043.87
  5. Step 5: Solve for x
    x = 319,290,043.87/19,972.24
  6. Step 6: Final answer
    x = 15,986.69

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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.