Home / 31,779.62-47,654.64-11,788.30

Finding the Fourth Proportional to 31,779.62, 47,654.64 and 11,788.30

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Solution

The fourth proportional to 31,779.62, 47,654.64 and 11,788.30 is: 17,676.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.62 : 47,654.64 = 11,788.30 : x
  2. Step 2: Convert to fraction form
    31,779.62/47,654.64 = 11,788.30/x
  3. Step 3: Cross multiply
    31,779.62x = 47,654.64 × 11,788.30
  4. Step 4: Simplify right side
    31,779.62x = 561,767,192.71
  5. Step 5: Solve for x
    x = 561,767,192.71/31,779.62
  6. Step 6: Final answer
    x = 17,676.96

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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.