Home / 28,341.64-42,514.20-8,621.65

Finding the Fourth Proportional to 28,341.64, 42,514.20 and 8,621.65

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Solution

The fourth proportional to 28,341.64, 42,514.20 and 8,621.65 is: 12,933.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.64 : 42,514.20 = 8,621.65 : x
  2. Step 2: Convert to fraction form
    28,341.64/42,514.20 = 8,621.65/x
  3. Step 3: Cross multiply
    28,341.64x = 42,514.20 × 8,621.65
  4. Step 4: Simplify right side
    28,341.64x = 366,542,552.43
  5. Step 5: Solve for x
    x = 366,542,552.43/28,341.64
  6. Step 6: Final answer
    x = 12,933.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.