Home / 35,818.40-53,653.77-20,982.34

Finding the Fourth Proportional to 35,818.40, 53,653.77 and 20,982.34

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Solution

The fourth proportional to 35,818.40, 53,653.77 and 20,982.34 is: 31,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.40 : 53,653.77 = 20,982.34 : x
  2. Step 2: Convert to fraction form
    35,818.40/53,653.77 = 20,982.34/x
  3. Step 3: Cross multiply
    35,818.40x = 53,653.77 × 20,982.34
  4. Step 4: Simplify right side
    35,818.40x = 1,125,781,644.42
  5. Step 5: Solve for x
    x = 1,125,781,644.42/35,818.40
  6. Step 6: Final answer
    x = 31,430.26

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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.