Home / 20,867.10-31,307.34-6,076.91

Finding the Fourth Proportional to 20,867.10, 31,307.34 and 6,076.91

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Solution

The fourth proportional to 20,867.10, 31,307.34 and 6,076.91 is: 9,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.10 : 31,307.34 = 6,076.91 : x
  2. Step 2: Convert to fraction form
    20,867.10/31,307.34 = 6,076.91/x
  3. Step 3: Cross multiply
    20,867.10x = 31,307.34 × 6,076.91
  4. Step 4: Simplify right side
    20,867.10x = 190,251,730.98
  5. Step 5: Solve for x
    x = 190,251,730.98/20,867.10
  6. Step 6: Final answer
    x = 9,117.31

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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.