Home / 29,423.90-40,614.28-18,813.58

Finding the Fourth Proportional to 29,423.90, 40,614.28 and 18,813.58

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Solution

The fourth proportional to 29,423.90, 40,614.28 and 18,813.58 is: 25,968.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,423.90 : 40,614.28 = 18,813.58 : x
  2. Step 2: Convert to fraction form
    29,423.90/40,614.28 = 18,813.58/x
  3. Step 3: Cross multiply
    29,423.90x = 40,614.28 × 18,813.58
  4. Step 4: Simplify right side
    29,423.90x = 764,100,005.92
  5. Step 5: Solve for x
    x = 764,100,005.92/29,423.90
  6. Step 6: Final answer
    x = 25,968.69

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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.