Home / 27,919.15-38,528.58-15,172.44

Finding the Fourth Proportional to 27,919.15, 38,528.58 and 15,172.44

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Solution

The fourth proportional to 27,919.15, 38,528.58 and 15,172.44 is: 20,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919.15 : 38,528.58 = 15,172.44 : x
  2. Step 2: Convert to fraction form
    27,919.15/38,528.58 = 15,172.44/x
  3. Step 3: Cross multiply
    27,919.15x = 38,528.58 × 15,172.44
  4. Step 4: Simplify right side
    27,919.15x = 584,572,568.34
  5. Step 5: Solve for x
    x = 584,572,568.34/27,919.15
  6. Step 6: Final answer
    x = 20,938.05

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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.