Home / 19,921.77-27,485.82-11,306.52

Finding the Fourth Proportional to 19,921.77, 27,485.82 and 11,306.52

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Solution

The fourth proportional to 19,921.77, 27,485.82 and 11,306.52 is: 15,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.77 : 27,485.82 = 11,306.52 : x
  2. Step 2: Convert to fraction form
    19,921.77/27,485.82 = 11,306.52/x
  3. Step 3: Cross multiply
    19,921.77x = 27,485.82 × 11,306.52
  4. Step 4: Simplify right side
    19,921.77x = 310,768,973.55
  5. Step 5: Solve for x
    x = 310,768,973.55/19,921.77
  6. Step 6: Final answer
    x = 15,599.47

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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.