Home / 20,677.19-28,541.02-11,730.64

Finding the Fourth Proportional to 20,677.19, 28,541.02 and 11,730.64

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Solution

The fourth proportional to 20,677.19, 28,541.02 and 11,730.64 is: 16,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.19 : 28,541.02 = 11,730.64 : x
  2. Step 2: Convert to fraction form
    20,677.19/28,541.02 = 11,730.64/x
  3. Step 3: Cross multiply
    20,677.19x = 28,541.02 × 11,730.64
  4. Step 4: Simplify right side
    20,677.19x = 334,804,430.85
  5. Step 5: Solve for x
    x = 334,804,430.85/20,677.19
  6. Step 6: Final answer
    x = 16,191.97

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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.