Home / 28,915.03-43,366.07-8,140.15

Finding the Fourth Proportional to 28,915.03, 43,366.07 and 8,140.15

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Solution

The fourth proportional to 28,915.03, 43,366.07 and 8,140.15 is: 12,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.03 : 43,366.07 = 8,140.15 : x
  2. Step 2: Convert to fraction form
    28,915.03/43,366.07 = 8,140.15/x
  3. Step 3: Cross multiply
    28,915.03x = 43,366.07 × 8,140.15
  4. Step 4: Simplify right side
    28,915.03x = 353,006,274.01
  5. Step 5: Solve for x
    x = 353,006,274.01/28,915.03
  6. Step 6: Final answer
    x = 12,208.40

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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.