Home / 28,512.40-39,292.68-24,779.92

Finding the Fourth Proportional to 28,512.40, 39,292.68 and 24,779.92

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Solution

The fourth proportional to 28,512.40, 39,292.68 and 24,779.92 is: 34,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.40 : 39,292.68 = 24,779.92 : x
  2. Step 2: Convert to fraction form
    28,512.40/39,292.68 = 24,779.92/x
  3. Step 3: Cross multiply
    28,512.40x = 39,292.68 × 24,779.92
  4. Step 4: Simplify right side
    28,512.40x = 973,669,466.99
  5. Step 5: Solve for x
    x = 973,669,466.99/28,512.40
  6. Step 6: Final answer
    x = 34,148.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.