Home / 20,858.16-31,290.30-6,068.28

Finding the Fourth Proportional to 20,858.16, 31,290.30 and 6,068.28

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Solution

The fourth proportional to 20,858.16, 31,290.30 and 6,068.28 is: 9,103.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858.16 : 31,290.30 = 6,068.28 : x
  2. Step 2: Convert to fraction form
    20,858.16/31,290.30 = 6,068.28/x
  3. Step 3: Cross multiply
    20,858.16x = 31,290.30 × 6,068.28
  4. Step 4: Simplify right side
    20,858.16x = 189,878,301.68
  5. Step 5: Solve for x
    x = 189,878,301.68/20,858.16
  6. Step 6: Final answer
    x = 9,103.31

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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.