Home / 20,606.30-30,835.47-17,842.40

Finding the Fourth Proportional to 20,606.30, 30,835.47 and 17,842.40

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Solution

The fourth proportional to 20,606.30, 30,835.47 and 17,842.40 is: 26,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.30 : 30,835.47 = 17,842.40 : x
  2. Step 2: Convert to fraction form
    20,606.30/30,835.47 = 17,842.40/x
  3. Step 3: Cross multiply
    20,606.30x = 30,835.47 × 17,842.40
  4. Step 4: Simplify right side
    20,606.30x = 550,178,789.93
  5. Step 5: Solve for x
    x = 550,178,789.93/20,606.30
  6. Step 6: Final answer
    x = 26,699.54

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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.