Home / 27,795.78-38,358.27-15,220.53

Finding the Fourth Proportional to 27,795.78, 38,358.27 and 15,220.53

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Solution

The fourth proportional to 27,795.78, 38,358.27 and 15,220.53 is: 21,004.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,795.78 : 38,358.27 = 15,220.53 : x
  2. Step 2: Convert to fraction form
    27,795.78/38,358.27 = 15,220.53/x
  3. Step 3: Cross multiply
    27,795.78x = 38,358.27 × 15,220.53
  4. Step 4: Simplify right side
    27,795.78x = 583,833,199.28
  5. Step 5: Solve for x
    x = 583,833,199.28/27,795.78
  6. Step 6: Final answer
    x = 21,004.38

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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.