Home / 20,465.69-30,700.35-8,776.17

Finding the Fourth Proportional to 20,465.69, 30,700.35 and 8,776.17

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Solution

The fourth proportional to 20,465.69, 30,700.35 and 8,776.17 is: 13,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465.69 : 30,700.35 = 8,776.17 : x
  2. Step 2: Convert to fraction form
    20,465.69/30,700.35 = 8,776.17/x
  3. Step 3: Cross multiply
    20,465.69x = 30,700.35 × 8,776.17
  4. Step 4: Simplify right side
    20,465.69x = 269,431,490.66
  5. Step 5: Solve for x
    x = 269,431,490.66/20,465.69
  6. Step 6: Final answer
    x = 13,165.04

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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.