Home / 20,345.32-28,079.39-14,698.34

Finding the Fourth Proportional to 20,345.32, 28,079.39 and 14,698.34

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Solution

The fourth proportional to 20,345.32, 28,079.39 and 14,698.34 is: 20,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.32 : 28,079.39 = 14,698.34 : x
  2. Step 2: Convert to fraction form
    20,345.32/28,079.39 = 14,698.34/x
  3. Step 3: Cross multiply
    20,345.32x = 28,079.39 × 14,698.34
  4. Step 4: Simplify right side
    20,345.32x = 412,720,207.32
  5. Step 5: Solve for x
    x = 412,720,207.32/20,345.32
  6. Step 6: Final answer
    x = 20,285.76

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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.