Home / 34,815.69-48,009.29-20,665.80

Finding the Fourth Proportional to 34,815.69, 48,009.29 and 20,665.80

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Solution

The fourth proportional to 34,815.69, 48,009.29 and 20,665.80 is: 28,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,815.69 : 48,009.29 = 20,665.80 : x
  2. Step 2: Convert to fraction form
    34,815.69/48,009.29 = 20,665.80/x
  3. Step 3: Cross multiply
    34,815.69x = 48,009.29 × 20,665.80
  4. Step 4: Simplify right side
    34,815.69x = 992,150,281.95
  5. Step 5: Solve for x
    x = 992,150,281.95/34,815.69
  6. Step 6: Final answer
    x = 28,497.22

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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.