Home / 29,710.28-40,975.88-21,197.36

Finding the Fourth Proportional to 29,710.28, 40,975.88 and 21,197.36

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Solution

The fourth proportional to 29,710.28, 40,975.88 and 21,197.36 is: 29,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,710.28 : 40,975.88 = 21,197.36 : x
  2. Step 2: Convert to fraction form
    29,710.28/40,975.88 = 21,197.36/x
  3. Step 3: Cross multiply
    29,710.28x = 40,975.88 × 21,197.36
  4. Step 4: Simplify right side
    29,710.28x = 868,580,479.68
  5. Step 5: Solve for x
    x = 868,580,479.68/29,710.28
  6. Step 6: Final answer
    x = 29,235.01

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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.