Home / 31,655.64-47,438.10-17,775.48

Finding the Fourth Proportional to 31,655.64, 47,438.10 and 17,775.48

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Solution

The fourth proportional to 31,655.64, 47,438.10 and 17,775.48 is: 26,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.64 : 47,438.10 = 17,775.48 : x
  2. Step 2: Convert to fraction form
    31,655.64/47,438.10 = 17,775.48/x
  3. Step 3: Cross multiply
    31,655.64x = 47,438.10 × 17,775.48
  4. Step 4: Simplify right side
    31,655.64x = 843,234,997.79
  5. Step 5: Solve for x
    x = 843,234,997.79/31,655.64
  6. Step 6: Final answer
    x = 26,637.75

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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.