Home / 47,455.08-71,199.58-21,157.48

Finding the Fourth Proportional to 47,455.08, 71,199.58 and 21,157.48

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Solution

The fourth proportional to 47,455.08, 71,199.58 and 21,157.48 is: 31,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,455.08 : 71,199.58 = 21,157.48 : x
  2. Step 2: Convert to fraction form
    47,455.08/71,199.58 = 21,157.48/x
  3. Step 3: Cross multiply
    47,455.08x = 71,199.58 × 21,157.48
  4. Step 4: Simplify right side
    47,455.08x = 1,506,403,689.86
  5. Step 5: Solve for x
    x = 1,506,403,689.86/47,455.08
  6. Step 6: Final answer
    x = 31,743.78

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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.