Home / 30,620.16-45,930.16-10,899.48

Finding the Fourth Proportional to 30,620.16, 45,930.16 and 10,899.48

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Solution

The fourth proportional to 30,620.16, 45,930.16 and 10,899.48 is: 16,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.16 : 45,930.16 = 10,899.48 : x
  2. Step 2: Convert to fraction form
    30,620.16/45,930.16 = 10,899.48/x
  3. Step 3: Cross multiply
    30,620.16x = 45,930.16 × 10,899.48
  4. Step 4: Simplify right side
    30,620.16x = 500,614,860.32
  5. Step 5: Solve for x
    x = 500,614,860.32/30,620.16
  6. Step 6: Final answer
    x = 16,349.19

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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.