Home / 47,447.88-71,173.10-12,386.76

Finding the Fourth Proportional to 47,447.88, 71,173.10 and 12,386.76

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Solution

The fourth proportional to 47,447.88, 71,173.10 and 12,386.76 is: 18,580.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,447.88 : 71,173.10 = 12,386.76 : x
  2. Step 2: Convert to fraction form
    47,447.88/71,173.10 = 12,386.76/x
  3. Step 3: Cross multiply
    47,447.88x = 71,173.10 × 12,386.76
  4. Step 4: Simplify right side
    47,447.88x = 881,604,108.16
  5. Step 5: Solve for x
    x = 881,604,108.16/47,447.88
  6. Step 6: Final answer
    x = 18,580.47

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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.