Home / 31,330.21-47,018.67-12,610.42

Finding the Fourth Proportional to 31,330.21, 47,018.67 and 12,610.42

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Solution

The fourth proportional to 31,330.21, 47,018.67 and 12,610.42 is: 18,925.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,330.21 : 47,018.67 = 12,610.42 : x
  2. Step 2: Convert to fraction form
    31,330.21/47,018.67 = 12,610.42/x
  3. Step 3: Cross multiply
    31,330.21x = 47,018.67 × 12,610.42
  4. Step 4: Simplify right side
    31,330.21x = 592,925,176.54
  5. Step 5: Solve for x
    x = 592,925,176.54/31,330.21
  6. Step 6: Final answer
    x = 18,925.03

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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.