Home / 27,664.11-38,176.29-15,727.45

Finding the Fourth Proportional to 27,664.11, 38,176.29 and 15,727.45

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Solution

The fourth proportional to 27,664.11, 38,176.29 and 15,727.45 is: 21,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,664.11 : 38,176.29 = 15,727.45 : x
  2. Step 2: Convert to fraction form
    27,664.11/38,176.29 = 15,727.45/x
  3. Step 3: Cross multiply
    27,664.11x = 38,176.29 × 15,727.45
  4. Step 4: Simplify right side
    27,664.11x = 600,415,422.64
  5. Step 5: Solve for x
    x = 600,415,422.64/27,664.11
  6. Step 6: Final answer
    x = 21,703.77

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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.