Home / 19,888.03-27,447.02-11,392.85

Finding the Fourth Proportional to 19,888.03, 27,447.02 and 11,392.85

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Solution

The fourth proportional to 19,888.03, 27,447.02 and 11,392.85 is: 15,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.03 : 27,447.02 = 11,392.85 : x
  2. Step 2: Convert to fraction form
    19,888.03/27,447.02 = 11,392.85/x
  3. Step 3: Cross multiply
    19,888.03x = 27,447.02 × 11,392.85
  4. Step 4: Simplify right side
    19,888.03x = 312,699,836.18
  5. Step 5: Solve for x
    x = 312,699,836.18/19,888.03
  6. Step 6: Final answer
    x = 15,723.02

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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.