Home / 25,915.48-38,874.42-8,386.68

Finding the Fourth Proportional to 25,915.48, 38,874.42 and 8,386.68

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Solution

The fourth proportional to 25,915.48, 38,874.42 and 8,386.68 is: 12,580.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.48 : 38,874.42 = 8,386.68 : x
  2. Step 2: Convert to fraction form
    25,915.48/38,874.42 = 8,386.68/x
  3. Step 3: Cross multiply
    25,915.48x = 38,874.42 × 8,386.68
  4. Step 4: Simplify right side
    25,915.48x = 326,027,320.73
  5. Step 5: Solve for x
    x = 326,027,320.73/25,915.48
  6. Step 6: Final answer
    x = 12,580.41

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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.