Home / 31,779.28-47,668.88-11,002.76

Finding the Fourth Proportional to 31,779.28, 47,668.88 and 11,002.76

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Solution

The fourth proportional to 31,779.28, 47,668.88 and 11,002.76 is: 16,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.28 : 47,668.88 = 11,002.76 : x
  2. Step 2: Convert to fraction form
    31,779.28/47,668.88 = 11,002.76/x
  3. Step 3: Cross multiply
    31,779.28x = 47,668.88 × 11,002.76
  4. Step 4: Simplify right side
    31,779.28x = 524,489,246.11
  5. Step 5: Solve for x
    x = 524,489,246.11/31,779.28
  6. Step 6: Final answer
    x = 16,504.13

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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.