Home / 25,779.84-38,613.60-15,921.60

Finding the Fourth Proportional to 25,779.84, 38,613.60 and 15,921.60

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Solution

The fourth proportional to 25,779.84, 38,613.60 and 15,921.60 is: 23,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,779.84 : 38,613.60 = 15,921.60 : x
  2. Step 2: Convert to fraction form
    25,779.84/38,613.60 = 15,921.60/x
  3. Step 3: Cross multiply
    25,779.84x = 38,613.60 × 15,921.60
  4. Step 4: Simplify right side
    25,779.84x = 614,790,293.76
  5. Step 5: Solve for x
    x = 614,790,293.76/25,779.84
  6. Step 6: Final answer
    x = 23,847.72

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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.