Home / 28,743.10-43,114.65-19,411.90

Finding the Fourth Proportional to 28,743.10, 43,114.65 and 19,411.90

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Solution

The fourth proportional to 28,743.10, 43,114.65 and 19,411.90 is: 29,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.10 : 43,114.65 = 19,411.90 : x
  2. Step 2: Convert to fraction form
    28,743.10/43,114.65 = 19,411.90/x
  3. Step 3: Cross multiply
    28,743.10x = 43,114.65 × 19,411.90
  4. Step 4: Simplify right side
    28,743.10x = 836,937,274.34
  5. Step 5: Solve for x
    x = 836,937,274.34/28,743.10
  6. Step 6: Final answer
    x = 29,117.85

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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.