Home / 35,871.15-53,739.18-21,036

Finding the Fourth Proportional to 35,871.15, 53,739.18 and 21,036

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Solution

The fourth proportional to 35,871.15, 53,739.18 and 21,036 is: 31,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,871.15 : 53,739.18 = 21,036 : x
  2. Step 2: Convert to fraction form
    35,871.15/53,739.18 = 21,036/x
  3. Step 3: Cross multiply
    35,871.15x = 53,739.18 × 21,036
  4. Step 4: Simplify right side
    35,871.15x = 1,130,457,390.48
  5. Step 5: Solve for x
    x = 1,130,457,390.48/35,871.15
  6. Step 6: Final answer
    x = 31,514.39

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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.