Home / 28,480.72-42,722.16-10,709.52

Finding the Fourth Proportional to 28,480.72, 42,722.16 and 10,709.52

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Solution

The fourth proportional to 28,480.72, 42,722.16 and 10,709.52 is: 16,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.72 : 42,722.16 = 10,709.52 : x
  2. Step 2: Convert to fraction form
    28,480.72/42,722.16 = 10,709.52/x
  3. Step 3: Cross multiply
    28,480.72x = 42,722.16 × 10,709.52
  4. Step 4: Simplify right side
    28,480.72x = 457,533,826.96
  5. Step 5: Solve for x
    x = 457,533,826.96/28,480.72
  6. Step 6: Final answer
    x = 16,064.69

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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.