Home / 19,929.44-27,501.36-11,972

Finding the Fourth Proportional to 19,929.44, 27,501.36 and 11,972

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Solution

The fourth proportional to 19,929.44, 27,501.36 and 11,972 is: 16,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.44 : 27,501.36 = 11,972 : x
  2. Step 2: Convert to fraction form
    19,929.44/27,501.36 = 11,972/x
  3. Step 3: Cross multiply
    19,929.44x = 27,501.36 × 11,972
  4. Step 4: Simplify right side
    19,929.44x = 329,246,281.92
  5. Step 5: Solve for x
    x = 329,246,281.92/19,929.44
  6. Step 6: Final answer
    x = 16,520.60

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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.