Home / 18,814.02-28,230.30-13,302.78

Finding the Fourth Proportional to 18,814.02, 28,230.30 and 13,302.78

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Solution

The fourth proportional to 18,814.02, 28,230.30 and 13,302.78 is: 19,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.02 : 28,230.30 = 13,302.78 : x
  2. Step 2: Convert to fraction form
    18,814.02/28,230.30 = 13,302.78/x
  3. Step 3: Cross multiply
    18,814.02x = 28,230.30 × 13,302.78
  4. Step 4: Simplify right side
    18,814.02x = 375,541,470.23
  5. Step 5: Solve for x
    x = 375,541,470.23/18,814.02
  6. Step 6: Final answer
    x = 19,960.72

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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.