Home / 20,259.04-30,391.80-8,572.36

Finding the Fourth Proportional to 20,259.04, 30,391.80 and 8,572.36

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Solution

The fourth proportional to 20,259.04, 30,391.80 and 8,572.36 is: 12,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.04 : 30,391.80 = 8,572.36 : x
  2. Step 2: Convert to fraction form
    20,259.04/30,391.80 = 8,572.36/x
  3. Step 3: Cross multiply
    20,259.04x = 30,391.80 × 8,572.36
  4. Step 4: Simplify right side
    20,259.04x = 260,529,450.65
  5. Step 5: Solve for x
    x = 260,529,450.65/20,259.04
  6. Step 6: Final answer
    x = 12,859.91

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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.