Home / 20,876.32-31,307.64-6,086.24

Finding the Fourth Proportional to 20,876.32, 31,307.64 and 6,086.24

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Solution

The fourth proportional to 20,876.32, 31,307.64 and 6,086.24 is: 9,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.32 : 31,307.64 = 6,086.24 : x
  2. Step 2: Convert to fraction form
    20,876.32/31,307.64 = 6,086.24/x
  3. Step 3: Cross multiply
    20,876.32x = 31,307.64 × 6,086.24
  4. Step 4: Simplify right side
    20,876.32x = 190,545,810.87
  5. Step 5: Solve for x
    x = 190,545,810.87/20,876.32
  6. Step 6: Final answer
    x = 9,127.37

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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.