Home / 35,939.22-53,890.93-20,951.40

Finding the Fourth Proportional to 35,939.22, 53,890.93 and 20,951.40

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Solution

The fourth proportional to 35,939.22, 53,890.93 and 20,951.40 is: 31,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,939.22 : 53,890.93 = 20,951.40 : x
  2. Step 2: Convert to fraction form
    35,939.22/53,890.93 = 20,951.40/x
  3. Step 3: Cross multiply
    35,939.22x = 53,890.93 × 20,951.40
  4. Step 4: Simplify right side
    35,939.22x = 1,129,090,430.80
  5. Step 5: Solve for x
    x = 1,129,090,430.80/35,939.22
  6. Step 6: Final answer
    x = 31,416.66

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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.