Home / 30,107.30-41,555.04-20,036.18

Finding the Fourth Proportional to 30,107.30, 41,555.04 and 20,036.18

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Solution

The fourth proportional to 30,107.30, 41,555.04 and 20,036.18 is: 27,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,107.30 : 41,555.04 = 20,036.18 : x
  2. Step 2: Convert to fraction form
    30,107.30/41,555.04 = 20,036.18/x
  3. Step 3: Cross multiply
    30,107.30x = 41,555.04 × 20,036.18
  4. Step 4: Simplify right side
    30,107.30x = 832,604,261.35
  5. Step 5: Solve for x
    x = 832,604,261.35/30,107.30
  6. Step 6: Final answer
    x = 27,654.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.