Home / 31,457.00-47,201.91-12,750.86

Finding the Fourth Proportional to 31,457.00, 47,201.91 and 12,750.86

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Solution

The fourth proportional to 31,457.00, 47,201.91 and 12,750.86 is: 19,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.00 : 47,201.91 = 12,750.86 : x
  2. Step 2: Convert to fraction form
    31,457.00/47,201.91 = 12,750.86/x
  3. Step 3: Cross multiply
    31,457.00x = 47,201.91 × 12,750.86
  4. Step 4: Simplify right side
    31,457.00x = 601,865,016.33
  5. Step 5: Solve for x
    x = 601,865,016.33/31,457.00
  6. Step 6: Final answer
    x = 19,132.94

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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.