Home / 39,711.78-59,567.27-12,009.78

Finding the Fourth Proportional to 39,711.78, 59,567.27 and 12,009.78

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Solution

The fourth proportional to 39,711.78, 59,567.27 and 12,009.78 is: 18,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.78 : 59,567.27 = 12,009.78 : x
  2. Step 2: Convert to fraction form
    39,711.78/59,567.27 = 12,009.78/x
  3. Step 3: Cross multiply
    39,711.78x = 59,567.27 × 12,009.78
  4. Step 4: Simplify right side
    39,711.78x = 715,389,747.85
  5. Step 5: Solve for x
    x = 715,389,747.85/39,711.78
  6. Step 6: Final answer
    x = 18,014.55

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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.