Home / 25,788.42-38,683.71-8,260.74

Finding the Fourth Proportional to 25,788.42, 38,683.71 and 8,260.74

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Solution

The fourth proportional to 25,788.42, 38,683.71 and 8,260.74 is: 12,391.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,788.42 : 38,683.71 = 8,260.74 : x
  2. Step 2: Convert to fraction form
    25,788.42/38,683.71 = 8,260.74/x
  3. Step 3: Cross multiply
    25,788.42x = 38,683.71 × 8,260.74
  4. Step 4: Simplify right side
    25,788.42x = 319,556,070.55
  5. Step 5: Solve for x
    x = 319,556,070.55/25,788.42
  6. Step 6: Final answer
    x = 12,391.46

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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.