Home / 20,927.45-31,395.73-6,888.91

Finding the Fourth Proportional to 20,927.45, 31,395.73 and 6,888.91

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Solution

The fourth proportional to 20,927.45, 31,395.73 and 6,888.91 is: 10,334.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.45 : 31,395.73 = 6,888.91 : x
  2. Step 2: Convert to fraction form
    20,927.45/31,395.73 = 6,888.91/x
  3. Step 3: Cross multiply
    20,927.45x = 31,395.73 × 6,888.91
  4. Step 4: Simplify right side
    20,927.45x = 216,282,166.93
  5. Step 5: Solve for x
    x = 216,282,166.93/20,927.45
  6. Step 6: Final answer
    x = 10,334.86

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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.