Home / 27,628.89-38,117.86-18,074.22

Finding the Fourth Proportional to 27,628.89, 38,117.86 and 18,074.22

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Solution

The fourth proportional to 27,628.89, 38,117.86 and 18,074.22 is: 24,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.89 : 38,117.86 = 18,074.22 : x
  2. Step 2: Convert to fraction form
    27,628.89/38,117.86 = 18,074.22/x
  3. Step 3: Cross multiply
    27,628.89x = 38,117.86 × 18,074.22
  4. Step 4: Simplify right side
    27,628.89x = 688,950,542.38
  5. Step 5: Solve for x
    x = 688,950,542.38/27,628.89
  6. Step 6: Final answer
    x = 24,935.87

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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.