Home / 30,924.92-42,662.22-18,345.08

Finding the Fourth Proportional to 30,924.92, 42,662.22 and 18,345.08

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Solution

The fourth proportional to 30,924.92, 42,662.22 and 18,345.08 is: 25,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,924.92 : 42,662.22 = 18,345.08 : x
  2. Step 2: Convert to fraction form
    30,924.92/42,662.22 = 18,345.08/x
  3. Step 3: Cross multiply
    30,924.92x = 42,662.22 × 18,345.08
  4. Step 4: Simplify right side
    30,924.92x = 782,641,838.88
  5. Step 5: Solve for x
    x = 782,641,838.88/30,924.92
  6. Step 6: Final answer
    x = 25,307.80

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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.