Home / 21,015.23-29,000.60-11,583.80

Finding the Fourth Proportional to 21,015.23, 29,000.60 and 11,583.80

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Solution

The fourth proportional to 21,015.23, 29,000.60 and 11,583.80 is: 15,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.23 : 29,000.60 = 11,583.80 : x
  2. Step 2: Convert to fraction form
    21,015.23/29,000.60 = 11,583.80/x
  3. Step 3: Cross multiply
    21,015.23x = 29,000.60 × 11,583.80
  4. Step 4: Simplify right side
    21,015.23x = 335,937,005.28
  5. Step 5: Solve for x
    x = 335,937,005.28/21,015.23
  6. Step 6: Final answer
    x = 15,985.41

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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.