Home / 21,048.66-29,047.04-11,617.80

Finding the Fourth Proportional to 21,048.66, 29,047.04 and 11,617.80

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Solution

The fourth proportional to 21,048.66, 29,047.04 and 11,617.80 is: 16,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.66 : 29,047.04 = 11,617.80 : x
  2. Step 2: Convert to fraction form
    21,048.66/29,047.04 = 11,617.80/x
  3. Step 3: Cross multiply
    21,048.66x = 29,047.04 × 11,617.80
  4. Step 4: Simplify right side
    21,048.66x = 337,462,701.31
  5. Step 5: Solve for x
    x = 337,462,701.31/21,048.66
  6. Step 6: Final answer
    x = 16,032.50

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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.