Home / 20,763.08-28,653.08-11,332.20

Finding the Fourth Proportional to 20,763.08, 28,653.08 and 11,332.20

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Solution

The fourth proportional to 20,763.08, 28,653.08 and 11,332.20 is: 15,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.08 : 28,653.08 = 11,332.20 : x
  2. Step 2: Convert to fraction form
    20,763.08/28,653.08 = 11,332.20/x
  3. Step 3: Cross multiply
    20,763.08x = 28,653.08 × 11,332.20
  4. Step 4: Simplify right side
    20,763.08x = 324,702,433.18
  5. Step 5: Solve for x
    x = 324,702,433.18/20,763.08
  6. Step 6: Final answer
    x = 15,638.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.