Home / 47,909.07-71,830.46-21,240.50

Finding the Fourth Proportional to 47,909.07, 71,830.46 and 21,240.50

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Solution

The fourth proportional to 47,909.07, 71,830.46 and 21,240.50 is: 31,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,909.07 : 71,830.46 = 21,240.50 : x
  2. Step 2: Convert to fraction form
    47,909.07/71,830.46 = 21,240.50/x
  3. Step 3: Cross multiply
    47,909.07x = 71,830.46 × 21,240.50
  4. Step 4: Simplify right side
    47,909.07x = 1,525,714,579.58
  5. Step 5: Solve for x
    x = 1,525,714,579.58/47,909.07
  6. Step 6: Final answer
    x = 31,846.05

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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.