Home / 47,615.76-65,697.36-28,746

Finding the Fourth Proportional to 47,615.76, 65,697.36 and 28,746

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Solution

The fourth proportional to 47,615.76, 65,697.36 and 28,746 is: 39,662.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615.76 : 65,697.36 = 28,746 : x
  2. Step 2: Convert to fraction form
    47,615.76/65,697.36 = 28,746/x
  3. Step 3: Cross multiply
    47,615.76x = 65,697.36 × 28,746
  4. Step 4: Simplify right side
    47,615.76x = 1,888,536,310.56
  5. Step 5: Solve for x
    x = 1,888,536,310.56/47,615.76
  6. Step 6: Final answer
    x = 39,662.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.