Home / 30,920.28-46,379.88-9,860.01

Finding the Fourth Proportional to 30,920.28, 46,379.88 and 9,860.01

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Solution

The fourth proportional to 30,920.28, 46,379.88 and 9,860.01 is: 14,789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.28 : 46,379.88 = 9,860.01 : x
  2. Step 2: Convert to fraction form
    30,920.28/46,379.88 = 9,860.01/x
  3. Step 3: Cross multiply
    30,920.28x = 46,379.88 × 9,860.01
  4. Step 4: Simplify right side
    30,920.28x = 457,306,080.60
  5. Step 5: Solve for x
    x = 457,306,080.60/30,920.28
  6. Step 6: Final answer
    x = 14,789.84

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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.