Home / 39,619.77-54,674.96-21,714.72

Finding the Fourth Proportional to 39,619.77, 54,674.96 and 21,714.72

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Solution

The fourth proportional to 39,619.77, 54,674.96 and 21,714.72 is: 29,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.77 : 54,674.96 = 21,714.72 : x
  2. Step 2: Convert to fraction form
    39,619.77/54,674.96 = 21,714.72/x
  3. Step 3: Cross multiply
    39,619.77x = 54,674.96 × 21,714.72
  4. Step 4: Simplify right side
    39,619.77x = 1,187,251,338.84
  5. Step 5: Solve for x
    x = 1,187,251,338.84/39,619.77
  6. Step 6: Final answer
    x = 29,966.13

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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.