Home / 19,240.16-28,821.83-12,646.35

Finding the Fourth Proportional to 19,240.16, 28,821.83 and 12,646.35

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Solution

The fourth proportional to 19,240.16, 28,821.83 and 12,646.35 is: 18,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.16 : 28,821.83 = 12,646.35 : x
  2. Step 2: Convert to fraction form
    19,240.16/28,821.83 = 12,646.35/x
  3. Step 3: Cross multiply
    19,240.16x = 28,821.83 × 12,646.35
  4. Step 4: Simplify right side
    19,240.16x = 364,490,886.59
  5. Step 5: Solve for x
    x = 364,490,886.59/19,240.16
  6. Step 6: Final answer
    x = 18,944.28

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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.