Home / 25,402.41-38,080.94-12,915.45

Finding the Fourth Proportional to 25,402.41, 38,080.94 and 12,915.45

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Solution

The fourth proportional to 25,402.41, 38,080.94 and 12,915.45 is: 19,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,402.41 : 38,080.94 = 12,915.45 : x
  2. Step 2: Convert to fraction form
    25,402.41/38,080.94 = 12,915.45/x
  3. Step 3: Cross multiply
    25,402.41x = 38,080.94 × 12,915.45
  4. Step 4: Simplify right side
    25,402.41x = 491,832,411.95
  5. Step 5: Solve for x
    x = 491,832,411.95/25,402.41
  6. Step 6: Final answer
    x = 19,361.64

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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.