Home / 28,601.85-42,898.19-7,820.49

Finding the Fourth Proportional to 28,601.85, 42,898.19 and 7,820.49

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Solution

The fourth proportional to 28,601.85, 42,898.19 and 7,820.49 is: 11,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.85 : 42,898.19 = 7,820.49 : x
  2. Step 2: Convert to fraction form
    28,601.85/42,898.19 = 7,820.49/x
  3. Step 3: Cross multiply
    28,601.85x = 42,898.19 × 7,820.49
  4. Step 4: Simplify right side
    28,601.85x = 335,484,826.81
  5. Step 5: Solve for x
    x = 335,484,826.81/28,601.85
  6. Step 6: Final answer
    x = 11,729.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.