Home / 26,748.20-40,122.30-18,972.20

Finding the Fourth Proportional to 26,748.20, 40,122.30 and 18,972.20

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Solution

The fourth proportional to 26,748.20, 40,122.30 and 18,972.20 is: 28,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,748.20 : 40,122.30 = 18,972.20 : x
  2. Step 2: Convert to fraction form
    26,748.20/40,122.30 = 18,972.20/x
  3. Step 3: Cross multiply
    26,748.20x = 40,122.30 × 18,972.20
  4. Step 4: Simplify right side
    26,748.20x = 761,208,300.06
  5. Step 5: Solve for x
    x = 761,208,300.06/26,748.20
  6. Step 6: Final answer
    x = 28,458.30

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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.