Home / 34,540.47-51,810.66-13,778.55

Finding the Fourth Proportional to 34,540.47, 51,810.66 and 13,778.55

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Solution

The fourth proportional to 34,540.47, 51,810.66 and 13,778.55 is: 20,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,540.47 : 51,810.66 = 13,778.55 : x
  2. Step 2: Convert to fraction form
    34,540.47/51,810.66 = 13,778.55/x
  3. Step 3: Cross multiply
    34,540.47x = 51,810.66 × 13,778.55
  4. Step 4: Simplify right side
    34,540.47x = 713,875,769.34
  5. Step 5: Solve for x
    x = 713,875,769.34/34,540.47
  6. Step 6: Final answer
    x = 20,667.81

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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.