Home / 30,950.29-42,697.69-18,367.75

Finding the Fourth Proportional to 30,950.29, 42,697.69 and 18,367.75

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Solution

The fourth proportional to 30,950.29, 42,697.69 and 18,367.75 is: 25,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,950.29 : 42,697.69 = 18,367.75 : x
  2. Step 2: Convert to fraction form
    30,950.29/42,697.69 = 18,367.75/x
  3. Step 3: Cross multiply
    30,950.29x = 42,697.69 × 18,367.75
  4. Step 4: Simplify right side
    30,950.29x = 784,260,495.50
  5. Step 5: Solve for x
    x = 784,260,495.50/30,950.29
  6. Step 6: Final answer
    x = 25,339.36

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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.