Home / 36,007.90-53,979.17-12,621.58

Finding the Fourth Proportional to 36,007.90, 53,979.17 and 12,621.58

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Solution

The fourth proportional to 36,007.90, 53,979.17 and 12,621.58 is: 18,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,007.90 : 53,979.17 = 12,621.58 : x
  2. Step 2: Convert to fraction form
    36,007.90/53,979.17 = 12,621.58/x
  3. Step 3: Cross multiply
    36,007.90x = 53,979.17 × 12,621.58
  4. Step 4: Simplify right side
    36,007.90x = 681,302,214.43
  5. Step 5: Solve for x
    x = 681,302,214.43/36,007.90
  6. Step 6: Final answer
    x = 18,920.91

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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.