Home / 21,042.48-29,038.80-11,611.68

Finding the Fourth Proportional to 21,042.48, 29,038.80 and 11,611.68

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Solution

The fourth proportional to 21,042.48, 29,038.80 and 11,611.68 is: 16,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.48 : 29,038.80 = 11,611.68 : x
  2. Step 2: Convert to fraction form
    21,042.48/29,038.80 = 11,611.68/x
  3. Step 3: Cross multiply
    21,042.48x = 29,038.80 × 11,611.68
  4. Step 4: Simplify right side
    21,042.48x = 337,189,253.18
  5. Step 5: Solve for x
    x = 337,189,253.18/21,042.48
  6. Step 6: Final answer
    x = 16,024.22

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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.