Home / 20,257.80-30,400.16-7,110.24

Finding the Fourth Proportional to 20,257.80, 30,400.16 and 7,110.24

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Solution

The fourth proportional to 20,257.80, 30,400.16 and 7,110.24 is: 10,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.80 : 30,400.16 = 7,110.24 : x
  2. Step 2: Convert to fraction form
    20,257.80/30,400.16 = 7,110.24/x
  3. Step 3: Cross multiply
    20,257.80x = 30,400.16 × 7,110.24
  4. Step 4: Simplify right side
    20,257.80x = 216,152,433.64
  5. Step 5: Solve for x
    x = 216,152,433.64/20,257.80
  6. Step 6: Final answer
    x = 10,670.08

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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.