Home / 30,167.92-41,639.81-18,830.59

Finding the Fourth Proportional to 30,167.92, 41,639.81 and 18,830.59

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Solution

The fourth proportional to 30,167.92, 41,639.81 and 18,830.59 is: 25,991.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167.92 : 41,639.81 = 18,830.59 : x
  2. Step 2: Convert to fraction form
    30,167.92/41,639.81 = 18,830.59/x
  3. Step 3: Cross multiply
    30,167.92x = 41,639.81 × 18,830.59
  4. Step 4: Simplify right side
    30,167.92x = 784,102,374.00
  5. Step 5: Solve for x
    x = 784,102,374.00/30,167.92
  6. Step 6: Final answer
    x = 25,991.26

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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.