Home / 31,507.24-47,270.09-9,321.21

Finding the Fourth Proportional to 31,507.24, 47,270.09 and 9,321.21

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Solution

The fourth proportional to 31,507.24, 47,270.09 and 9,321.21 is: 13,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.24 : 47,270.09 = 9,321.21 : x
  2. Step 2: Convert to fraction form
    31,507.24/47,270.09 = 9,321.21/x
  3. Step 3: Cross multiply
    31,507.24x = 47,270.09 × 9,321.21
  4. Step 4: Simplify right side
    31,507.24x = 440,614,389.00
  5. Step 5: Solve for x
    x = 440,614,389.00/31,507.24
  6. Step 6: Final answer
    x = 13,984.55

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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.