Home / 47,421.90-71,108.88-15,820.98

Finding the Fourth Proportional to 47,421.90, 71,108.88 and 15,820.98

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Solution

The fourth proportional to 47,421.90, 71,108.88 and 15,820.98 is: 23,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,421.90 : 71,108.88 = 15,820.98 : x
  2. Step 2: Convert to fraction form
    47,421.90/71,108.88 = 15,820.98/x
  3. Step 3: Cross multiply
    47,421.90x = 71,108.88 × 15,820.98
  4. Step 4: Simplify right side
    47,421.90x = 1,125,012,168.30
  5. Step 5: Solve for x
    x = 1,125,012,168.30/47,421.90
  6. Step 6: Final answer
    x = 23,723.47

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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.