Home / 31,711.50-47,567.25-13,243.50

Finding the Fourth Proportional to 31,711.50, 47,567.25 and 13,243.50

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Solution

The fourth proportional to 31,711.50, 47,567.25 and 13,243.50 is: 19,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.50 : 47,567.25 = 13,243.50 : x
  2. Step 2: Convert to fraction form
    31,711.50/47,567.25 = 13,243.50/x
  3. Step 3: Cross multiply
    31,711.50x = 47,567.25 × 13,243.50
  4. Step 4: Simplify right side
    31,711.50x = 629,956,875.38
  5. Step 5: Solve for x
    x = 629,956,875.38/31,711.50
  6. Step 6: Final answer
    x = 19,865.25

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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.