Home / 20,235.69-30,353.40-16,765.65

Finding the Fourth Proportional to 20,235.69, 30,353.40 and 16,765.65

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Solution

The fourth proportional to 20,235.69, 30,353.40 and 16,765.65 is: 25,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.69 : 30,353.40 = 16,765.65 : x
  2. Step 2: Convert to fraction form
    20,235.69/30,353.40 = 16,765.65/x
  3. Step 3: Cross multiply
    20,235.69x = 30,353.40 × 16,765.65
  4. Step 4: Simplify right side
    20,235.69x = 508,894,480.71
  5. Step 5: Solve for x
    x = 508,894,480.71/20,235.69
  6. Step 6: Final answer
    x = 25,148.36

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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.