Home / 20,520.04-30,775.59-5,526.79

Finding the Fourth Proportional to 20,520.04, 30,775.59 and 5,526.79

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Solution

The fourth proportional to 20,520.04, 30,775.59 and 5,526.79 is: 8,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.04 : 30,775.59 = 5,526.79 : x
  2. Step 2: Convert to fraction form
    20,520.04/30,775.59 = 5,526.79/x
  3. Step 3: Cross multiply
    20,520.04x = 30,775.59 × 5,526.79
  4. Step 4: Simplify right side
    20,520.04x = 170,090,223.06
  5. Step 5: Solve for x
    x = 170,090,223.06/20,520.04
  6. Step 6: Final answer
    x = 8,288.98

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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.