Home / 47,339.21-71,018.54-19,259.20

Finding the Fourth Proportional to 47,339.21, 71,018.54 and 19,259.20

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Solution

The fourth proportional to 47,339.21, 71,018.54 and 19,259.20 is: 28,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,339.21 : 71,018.54 = 19,259.20 : x
  2. Step 2: Convert to fraction form
    47,339.21/71,018.54 = 19,259.20/x
  3. Step 3: Cross multiply
    47,339.21x = 71,018.54 × 19,259.20
  4. Step 4: Simplify right side
    47,339.21x = 1,367,759,814.18
  5. Step 5: Solve for x
    x = 1,367,759,814.18/47,339.21
  6. Step 6: Final answer
    x = 28,892.75

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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.