Home / 34,112.40-47,078.45-20,693.13

Finding the Fourth Proportional to 34,112.40, 47,078.45 and 20,693.13

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Solution

The fourth proportional to 34,112.40, 47,078.45 and 20,693.13 is: 28,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,112.40 : 47,078.45 = 20,693.13 : x
  2. Step 2: Convert to fraction form
    34,112.40/47,078.45 = 20,693.13/x
  3. Step 3: Cross multiply
    34,112.40x = 47,078.45 × 20,693.13
  4. Step 4: Simplify right side
    34,112.40x = 974,200,486.05
  5. Step 5: Solve for x
    x = 974,200,486.05/34,112.40
  6. Step 6: Final answer
    x = 28,558.54

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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.