Home / 21,182.75-29,230.34-11,621.10

Finding the Fourth Proportional to 21,182.75, 29,230.34 and 11,621.10

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Solution

The fourth proportional to 21,182.75, 29,230.34 and 11,621.10 is: 16,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.75 : 29,230.34 = 11,621.10 : x
  2. Step 2: Convert to fraction form
    21,182.75/29,230.34 = 11,621.10/x
  3. Step 3: Cross multiply
    21,182.75x = 29,230.34 × 11,621.10
  4. Step 4: Simplify right side
    21,182.75x = 339,688,646.07
  5. Step 5: Solve for x
    x = 339,688,646.07/21,182.75
  6. Step 6: Final answer
    x = 16,036.10

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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.