Home / 27,543.55-38,021.72-18,603.16

Finding the Fourth Proportional to 27,543.55, 38,021.72 and 18,603.16

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Solution

The fourth proportional to 27,543.55, 38,021.72 and 18,603.16 is: 25,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,543.55 : 38,021.72 = 18,603.16 : x
  2. Step 2: Convert to fraction form
    27,543.55/38,021.72 = 18,603.16/x
  3. Step 3: Cross multiply
    27,543.55x = 38,021.72 × 18,603.16
  4. Step 4: Simplify right side
    27,543.55x = 707,324,140.64
  5. Step 5: Solve for x
    x = 707,324,140.64/27,543.55
  6. Step 6: Final answer
    x = 25,680.21

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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.