Home / 27,920.59-38,530.55-15,173.87

Finding the Fourth Proportional to 27,920.59, 38,530.55 and 15,173.87

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Solution

The fourth proportional to 27,920.59, 38,530.55 and 15,173.87 is: 20,940.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.59 : 38,530.55 = 15,173.87 : x
  2. Step 2: Convert to fraction form
    27,920.59/38,530.55 = 15,173.87/x
  3. Step 3: Cross multiply
    27,920.59x = 38,530.55 × 15,173.87
  4. Step 4: Simplify right side
    27,920.59x = 584,657,402.01
  5. Step 5: Solve for x
    x = 584,657,402.01/27,920.59
  6. Step 6: Final answer
    x = 20,940.01

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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.