Home / 20,695.62-28,533.27-15,038.58

Finding the Fourth Proportional to 20,695.62, 28,533.27 and 15,038.58

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Solution

The fourth proportional to 20,695.62, 28,533.27 and 15,038.58 is: 20,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.62 : 28,533.27 = 15,038.58 : x
  2. Step 2: Convert to fraction form
    20,695.62/28,533.27 = 15,038.58/x
  3. Step 3: Cross multiply
    20,695.62x = 28,533.27 × 15,038.58
  4. Step 4: Simplify right side
    20,695.62x = 429,099,863.56
  5. Step 5: Solve for x
    x = 429,099,863.56/20,695.62
  6. Step 6: Final answer
    x = 20,733.85

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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.