Home / 35,638.80-53,458.20-31,945.20

Finding the Fourth Proportional to 35,638.80, 53,458.20 and 31,945.20

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Solution

The fourth proportional to 35,638.80, 53,458.20 and 31,945.20 is: 47,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,638.80 : 53,458.20 = 31,945.20 : x
  2. Step 2: Convert to fraction form
    35,638.80/53,458.20 = 31,945.20/x
  3. Step 3: Cross multiply
    35,638.80x = 53,458.20 × 31,945.20
  4. Step 4: Simplify right side
    35,638.80x = 1,707,732,890.64
  5. Step 5: Solve for x
    x = 1,707,732,890.64/35,638.80
  6. Step 6: Final answer
    x = 47,917.80

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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.