Home / 25,915.89-38,846.92-12,569.12

Finding the Fourth Proportional to 25,915.89, 38,846.92 and 12,569.12

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Solution

The fourth proportional to 25,915.89, 38,846.92 and 12,569.12 is: 18,840.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.89 : 38,846.92 = 12,569.12 : x
  2. Step 2: Convert to fraction form
    25,915.89/38,846.92 = 12,569.12/x
  3. Step 3: Cross multiply
    25,915.89x = 38,846.92 × 12,569.12
  4. Step 4: Simplify right side
    25,915.89x = 488,271,599.11
  5. Step 5: Solve for x
    x = 488,271,599.11/25,915.89
  6. Step 6: Final answer
    x = 18,840.63

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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.