Home / 31,779.12-47,649.99-12,059.06

Finding the Fourth Proportional to 31,779.12, 47,649.99 and 12,059.06

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Solution

The fourth proportional to 31,779.12, 47,649.99 and 12,059.06 is: 18,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.12 : 47,649.99 = 12,059.06 : x
  2. Step 2: Convert to fraction form
    31,779.12/47,649.99 = 12,059.06/x
  3. Step 3: Cross multiply
    31,779.12x = 47,649.99 × 12,059.06
  4. Step 4: Simplify right side
    31,779.12x = 574,614,207.53
  5. Step 5: Solve for x
    x = 574,614,207.53/31,779.12
  6. Step 6: Final answer
    x = 18,081.50

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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.