Home / 31,765.85-47,588.64-21,204.03

Finding the Fourth Proportional to 31,765.85, 47,588.64 and 21,204.03

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Solution

The fourth proportional to 31,765.85, 47,588.64 and 21,204.03 is: 31,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.85 : 47,588.64 = 21,204.03 : x
  2. Step 2: Convert to fraction form
    31,765.85/47,588.64 = 21,204.03/x
  3. Step 3: Cross multiply
    31,765.85x = 47,588.64 × 21,204.03
  4. Step 4: Simplify right side
    31,765.85x = 1,009,070,606.26
  5. Step 5: Solve for x
    x = 1,009,070,606.26/31,765.85
  6. Step 6: Final answer
    x = 31,765.89

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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.