Home / 19,928.56-27,493.12-12,372.36

Finding the Fourth Proportional to 19,928.56, 27,493.12 and 12,372.36

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Solution

The fourth proportional to 19,928.56, 27,493.12 and 12,372.36 is: 17,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.56 : 27,493.12 = 12,372.36 : x
  2. Step 2: Convert to fraction form
    19,928.56/27,493.12 = 12,372.36/x
  3. Step 3: Cross multiply
    19,928.56x = 27,493.12 × 12,372.36
  4. Step 4: Simplify right side
    19,928.56x = 340,154,778.16
  5. Step 5: Solve for x
    x = 340,154,778.16/19,928.56
  6. Step 6: Final answer
    x = 17,068.71

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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.