Home / 28,626.83-42,946.46-11,978.29

Finding the Fourth Proportional to 28,626.83, 42,946.46 and 11,978.29

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Solution

The fourth proportional to 28,626.83, 42,946.46 and 11,978.29 is: 17,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.83 : 42,946.46 = 11,978.29 : x
  2. Step 2: Convert to fraction form
    28,626.83/42,946.46 = 11,978.29/x
  3. Step 3: Cross multiply
    28,626.83x = 42,946.46 × 11,978.29
  4. Step 4: Simplify right side
    28,626.83x = 514,425,103.97
  5. Step 5: Solve for x
    x = 514,425,103.97/28,626.83
  6. Step 6: Final answer
    x = 17,970.04

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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.