Home / 28,434.12-39,247.30-16,500.12

Finding the Fourth Proportional to 28,434.12, 39,247.30 and 16,500.12

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Solution

The fourth proportional to 28,434.12, 39,247.30 and 16,500.12 is: 22,774.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.12 : 39,247.30 = 16,500.12 : x
  2. Step 2: Convert to fraction form
    28,434.12/39,247.30 = 16,500.12/x
  3. Step 3: Cross multiply
    28,434.12x = 39,247.30 × 16,500.12
  4. Step 4: Simplify right side
    28,434.12x = 647,585,159.68
  5. Step 5: Solve for x
    x = 647,585,159.68/28,434.12
  6. Step 6: Final answer
    x = 22,774.93

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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.