Home / 21,342.04-29,454.06-11,911.48

Finding the Fourth Proportional to 21,342.04, 29,454.06 and 11,911.48

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Solution

The fourth proportional to 21,342.04, 29,454.06 and 11,911.48 is: 16,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.04 : 29,454.06 = 11,911.48 : x
  2. Step 2: Convert to fraction form
    21,342.04/29,454.06 = 11,911.48/x
  3. Step 3: Cross multiply
    21,342.04x = 29,454.06 × 11,911.48
  4. Step 4: Simplify right side
    21,342.04x = 350,841,446.61
  5. Step 5: Solve for x
    x = 350,841,446.61/21,342.04
  6. Step 6: Final answer
    x = 16,438.98

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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.