Home / 20,852.28-31,281.30-7,005.24

Finding the Fourth Proportional to 20,852.28, 31,281.30 and 7,005.24

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Solution

The fourth proportional to 20,852.28, 31,281.30 and 7,005.24 is: 10,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.28 : 31,281.30 = 7,005.24 : x
  2. Step 2: Convert to fraction form
    20,852.28/31,281.30 = 7,005.24/x
  3. Step 3: Cross multiply
    20,852.28x = 31,281.30 × 7,005.24
  4. Step 4: Simplify right side
    20,852.28x = 219,133,014.01
  5. Step 5: Solve for x
    x = 219,133,014.01/20,852.28
  6. Step 6: Final answer
    x = 10,508.83

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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.