Home / 19,800.46-27,325.32-13,348.78

Finding the Fourth Proportional to 19,800.46, 27,325.32 and 13,348.78

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Solution

The fourth proportional to 19,800.46, 27,325.32 and 13,348.78 is: 18,421.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.46 : 27,325.32 = 13,348.78 : x
  2. Step 2: Convert to fraction form
    19,800.46/27,325.32 = 13,348.78/x
  3. Step 3: Cross multiply
    19,800.46x = 27,325.32 × 13,348.78
  4. Step 4: Simplify right side
    19,800.46x = 364,759,685.11
  5. Step 5: Solve for x
    x = 364,759,685.11/19,800.46
  6. Step 6: Final answer
    x = 18,421.78

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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.