Home / 27,975.55-38,608.01-15,400.30

Finding the Fourth Proportional to 27,975.55, 38,608.01 and 15,400.30

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Solution

The fourth proportional to 27,975.55, 38,608.01 and 15,400.30 is: 21,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,975.55 : 38,608.01 = 15,400.30 : x
  2. Step 2: Convert to fraction form
    27,975.55/38,608.01 = 15,400.30/x
  3. Step 3: Cross multiply
    27,975.55x = 38,608.01 × 15,400.30
  4. Step 4: Simplify right side
    27,975.55x = 594,574,897.90
  5. Step 5: Solve for x
    x = 594,574,897.90/27,975.55
  6. Step 6: Final answer
    x = 21,253.38

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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.