Home / 27,975.45-38,593.08-16,638.57

Finding the Fourth Proportional to 27,975.45, 38,593.08 and 16,638.57

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Solution

The fourth proportional to 27,975.45, 38,593.08 and 16,638.57 is: 22,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,975.45 : 38,593.08 = 16,638.57 : x
  2. Step 2: Convert to fraction form
    27,975.45/38,593.08 = 16,638.57/x
  3. Step 3: Cross multiply
    27,975.45x = 38,593.08 × 16,638.57
  4. Step 4: Simplify right side
    27,975.45x = 642,133,663.10
  5. Step 5: Solve for x
    x = 642,133,663.10/27,975.45
  6. Step 6: Final answer
    x = 22,953.47

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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.