Home / 20,698.10-31,066.64-10,844.30

Finding the Fourth Proportional to 20,698.10, 31,066.64 and 10,844.30

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Solution

The fourth proportional to 20,698.10, 31,066.64 and 10,844.30 is: 16,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.10 : 31,066.64 = 10,844.30 : x
  2. Step 2: Convert to fraction form
    20,698.10/31,066.64 = 10,844.30/x
  3. Step 3: Cross multiply
    20,698.10x = 31,066.64 × 10,844.30
  4. Step 4: Simplify right side
    20,698.10x = 336,895,853.51
  5. Step 5: Solve for x
    x = 336,895,853.51/20,698.10
  6. Step 6: Final answer
    x = 16,276.66

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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.