Home / 28,012.60-41,970.30-17,612.20

Finding the Fourth Proportional to 28,012.60, 41,970.30 and 17,612.20

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Solution

The fourth proportional to 28,012.60, 41,970.30 and 17,612.20 is: 26,387.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.60 : 41,970.30 = 17,612.20 : x
  2. Step 2: Convert to fraction form
    28,012.60/41,970.30 = 17,612.20/x
  3. Step 3: Cross multiply
    28,012.60x = 41,970.30 × 17,612.20
  4. Step 4: Simplify right side
    28,012.60x = 739,189,317.66
  5. Step 5: Solve for x
    x = 739,189,317.66/28,012.60
  6. Step 6: Final answer
    x = 26,387.74

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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.