Home / 31,387.22-47,076.64-11,663.10

Finding the Fourth Proportional to 31,387.22, 47,076.64 and 11,663.10

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Solution

The fourth proportional to 31,387.22, 47,076.64 and 11,663.10 is: 17,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.22 : 47,076.64 = 11,663.10 : x
  2. Step 2: Convert to fraction form
    31,387.22/47,076.64 = 11,663.10/x
  3. Step 3: Cross multiply
    31,387.22x = 47,076.64 × 11,663.10
  4. Step 4: Simplify right side
    31,387.22x = 549,059,559.98
  5. Step 5: Solve for x
    x = 549,059,559.98/31,387.22
  6. Step 6: Final answer
    x = 17,493.09

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1.5x scale

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.