Home / 31,412.21-47,100.08-12,676.91

Finding the Fourth Proportional to 31,412.21, 47,100.08 and 12,676.91

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Solution

The fourth proportional to 31,412.21, 47,100.08 and 12,676.91 is: 19,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412.21 : 47,100.08 = 12,676.91 : x
  2. Step 2: Convert to fraction form
    31,412.21/47,100.08 = 12,676.91/x
  3. Step 3: Cross multiply
    31,412.21x = 47,100.08 × 12,676.91
  4. Step 4: Simplify right side
    31,412.21x = 597,083,271.34
  5. Step 5: Solve for x
    x = 597,083,271.34/31,412.21
  6. Step 6: Final answer
    x = 19,008.00

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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.