Home / 27,902.64-38,504.88-15,155.22

Finding the Fourth Proportional to 27,902.64, 38,504.88 and 15,155.22

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Solution

The fourth proportional to 27,902.64, 38,504.88 and 15,155.22 is: 20,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,902.64 : 38,504.88 = 15,155.22 : x
  2. Step 2: Convert to fraction form
    27,902.64/38,504.88 = 15,155.22/x
  3. Step 3: Cross multiply
    27,902.64x = 38,504.88 × 15,155.22
  4. Step 4: Simplify right side
    27,902.64x = 583,549,927.47
  5. Step 5: Solve for x
    x = 583,549,927.47/27,902.64
  6. Step 6: Final answer
    x = 20,913.79

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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.