Home / 28,915.20-39,903.84-16,337.52

Finding the Fourth Proportional to 28,915.20, 39,903.84 and 16,337.52

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Solution

The fourth proportional to 28,915.20, 39,903.84 and 16,337.52 is: 22,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.20 : 39,903.84 = 16,337.52 : x
  2. Step 2: Convert to fraction form
    28,915.20/39,903.84 = 16,337.52/x
  3. Step 3: Cross multiply
    28,915.20x = 39,903.84 × 16,337.52
  4. Step 4: Simplify right side
    28,915.20x = 651,929,784.08
  5. Step 5: Solve for x
    x = 651,929,784.08/28,915.20
  6. Step 6: Final answer
    x = 22,546.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.