Home / 25,128.32-37,702.40-11,274.24

Finding the Fourth Proportional to 25,128.32, 37,702.40 and 11,274.24

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Solution

The fourth proportional to 25,128.32, 37,702.40 and 11,274.24 is: 16,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,128.32 : 37,702.40 = 11,274.24 : x
  2. Step 2: Convert to fraction form
    25,128.32/37,702.40 = 11,274.24/x
  3. Step 3: Cross multiply
    25,128.32x = 37,702.40 × 11,274.24
  4. Step 4: Simplify right side
    25,128.32x = 425,065,906.18
  5. Step 5: Solve for x
    x = 425,065,906.18/25,128.32
  6. Step 6: Final answer
    x = 16,915.81

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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.