Home / 35,639.46-53,458.20-20,668.86

Finding the Fourth Proportional to 35,639.46, 53,458.20 and 20,668.86

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Solution

The fourth proportional to 35,639.46, 53,458.20 and 20,668.86 is: 31,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.46 : 53,458.20 = 20,668.86 : x
  2. Step 2: Convert to fraction form
    35,639.46/53,458.20 = 20,668.86/x
  3. Step 3: Cross multiply
    35,639.46x = 53,458.20 × 20,668.86
  4. Step 4: Simplify right side
    35,639.46x = 1,104,920,051.65
  5. Step 5: Solve for x
    x = 1,104,920,051.65/35,639.46
  6. Step 6: Final answer
    x = 31,002.72

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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.