Home / 48,714.28-73,021.16-18,720.40

Finding the Fourth Proportional to 48,714.28, 73,021.16 and 18,720.40

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Solution

The fourth proportional to 48,714.28, 73,021.16 and 18,720.40 is: 28,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,714.28 : 73,021.16 = 18,720.40 : x
  2. Step 2: Convert to fraction form
    48,714.28/73,021.16 = 18,720.40/x
  3. Step 3: Cross multiply
    48,714.28x = 73,021.16 × 18,720.40
  4. Step 4: Simplify right side
    48,714.28x = 1,366,985,323.66
  5. Step 5: Solve for x
    x = 1,366,985,323.66/48,714.28
  6. Step 6: Final answer
    x = 28,061.29

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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.