Home / 21,282.46-29,320.86-16,804.56

Finding the Fourth Proportional to 21,282.46, 29,320.86 and 16,804.56

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Solution

The fourth proportional to 21,282.46, 29,320.86 and 16,804.56 is: 23,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.46 : 29,320.86 = 16,804.56 : x
  2. Step 2: Convert to fraction form
    21,282.46/29,320.86 = 16,804.56/x
  3. Step 3: Cross multiply
    21,282.46x = 29,320.86 × 16,804.56
  4. Step 4: Simplify right side
    21,282.46x = 492,724,004.52
  5. Step 5: Solve for x
    x = 492,724,004.52/21,282.46
  6. Step 6: Final answer
    x = 23,151.65

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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.