Home / 20,866.76-31,300.16-7,025.48

Finding the Fourth Proportional to 20,866.76, 31,300.16 and 7,025.48

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Solution

The fourth proportional to 20,866.76, 31,300.16 and 7,025.48 is: 10,538.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866.76 : 31,300.16 = 7,025.48 : x
  2. Step 2: Convert to fraction form
    20,866.76/31,300.16 = 7,025.48/x
  3. Step 3: Cross multiply
    20,866.76x = 31,300.16 × 7,025.48
  4. Step 4: Simplify right side
    20,866.76x = 219,898,648.08
  5. Step 5: Solve for x
    x = 219,898,648.08/20,866.76
  6. Step 6: Final answer
    x = 10,538.23

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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.