Home / 26,943.60-40,415.40-18,649.20

Finding the Fourth Proportional to 26,943.60, 40,415.40 and 18,649.20

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Solution

The fourth proportional to 26,943.60, 40,415.40 and 18,649.20 is: 27,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,943.60 : 40,415.40 = 18,649.20 : x
  2. Step 2: Convert to fraction form
    26,943.60/40,415.40 = 18,649.20/x
  3. Step 3: Cross multiply
    26,943.60x = 40,415.40 × 18,649.20
  4. Step 4: Simplify right side
    26,943.60x = 753,714,877.68
  5. Step 5: Solve for x
    x = 753,714,877.68/26,943.60
  6. Step 6: Final answer
    x = 27,973.80

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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.