Home / 33,111.04-45,686.64-21,165.28

Finding the Fourth Proportional to 33,111.04, 45,686.64 and 21,165.28

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Solution

The fourth proportional to 33,111.04, 45,686.64 and 21,165.28 is: 29,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,111.04 : 45,686.64 = 21,165.28 : x
  2. Step 2: Convert to fraction form
    33,111.04/45,686.64 = 21,165.28/x
  3. Step 3: Cross multiply
    33,111.04x = 45,686.64 × 21,165.28
  4. Step 4: Simplify right side
    33,111.04x = 966,970,527.86
  5. Step 5: Solve for x
    x = 966,970,527.86/33,111.04
  6. Step 6: Final answer
    x = 29,203.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.