Home / 28,030.66-38,689.83-18,951.87

Finding the Fourth Proportional to 28,030.66, 38,689.83 and 18,951.87

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Solution

The fourth proportional to 28,030.66, 38,689.83 and 18,951.87 is: 26,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.66 : 38,689.83 = 18,951.87 : x
  2. Step 2: Convert to fraction form
    28,030.66/38,689.83 = 18,951.87/x
  3. Step 3: Cross multiply
    28,030.66x = 38,689.83 × 18,951.87
  4. Step 4: Simplify right side
    28,030.66x = 733,244,720.27
  5. Step 5: Solve for x
    x = 733,244,720.27/28,030.66
  6. Step 6: Final answer
    x = 26,158.67

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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.