Home / 20,632.49-30,953.28-7,485.89

Finding the Fourth Proportional to 20,632.49, 30,953.28 and 7,485.89

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Solution

The fourth proportional to 20,632.49, 30,953.28 and 7,485.89 is: 11,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.49 : 30,953.28 = 7,485.89 : x
  2. Step 2: Convert to fraction form
    20,632.49/30,953.28 = 7,485.89/x
  3. Step 3: Cross multiply
    20,632.49x = 30,953.28 × 7,485.89
  4. Step 4: Simplify right side
    20,632.49x = 231,712,694.45
  5. Step 5: Solve for x
    x = 231,712,694.45/20,632.49
  6. Step 6: Final answer
    x = 11,230.48

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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.