Home / 27,803.50-38,368.83-15,228.70

Finding the Fourth Proportional to 27,803.50, 38,368.83 and 15,228.70

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Solution

The fourth proportional to 27,803.50, 38,368.83 and 15,228.70 is: 21,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.50 : 38,368.83 = 15,228.70 : x
  2. Step 2: Convert to fraction form
    27,803.50/38,368.83 = 15,228.70/x
  3. Step 3: Cross multiply
    27,803.50x = 38,368.83 × 15,228.70
  4. Step 4: Simplify right side
    27,803.50x = 584,307,401.42
  5. Step 5: Solve for x
    x = 584,307,401.42/27,803.50
  6. Step 6: Final answer
    x = 21,015.61

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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.