Home / 31,567.28-47,318.10-12,839.26

Finding the Fourth Proportional to 31,567.28, 47,318.10 and 12,839.26

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Solution

The fourth proportional to 31,567.28, 47,318.10 and 12,839.26 is: 19,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,567.28 : 47,318.10 = 12,839.26 : x
  2. Step 2: Convert to fraction form
    31,567.28/47,318.10 = 12,839.26/x
  3. Step 3: Cross multiply
    31,567.28x = 47,318.10 × 12,839.26
  4. Step 4: Simplify right side
    31,567.28x = 607,529,388.61
  5. Step 5: Solve for x
    x = 607,529,388.61/31,567.28
  6. Step 6: Final answer
    x = 19,245.54

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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.