Home / 19,721.52-27,200.34-11,762.06

Finding the Fourth Proportional to 19,721.52, 27,200.34 and 11,762.06

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Solution

The fourth proportional to 19,721.52, 27,200.34 and 11,762.06 is: 16,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.52 : 27,200.34 = 11,762.06 : x
  2. Step 2: Convert to fraction form
    19,721.52/27,200.34 = 11,762.06/x
  3. Step 3: Cross multiply
    19,721.52x = 27,200.34 × 11,762.06
  4. Step 4: Simplify right side
    19,721.52x = 319,931,895.10
  5. Step 5: Solve for x
    x = 319,931,895.10/19,721.52
  6. Step 6: Final answer
    x = 16,222.48

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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.