Home / 40,178.02-55,448.98-22,278.64

Finding the Fourth Proportional to 40,178.02, 55,448.98 and 22,278.64

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Solution

The fourth proportional to 40,178.02, 55,448.98 and 22,278.64 is: 30,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,178.02 : 55,448.98 = 22,278.64 : x
  2. Step 2: Convert to fraction form
    40,178.02/55,448.98 = 22,278.64/x
  3. Step 3: Cross multiply
    40,178.02x = 55,448.98 × 22,278.64
  4. Step 4: Simplify right side
    40,178.02x = 1,235,327,863.79
  5. Step 5: Solve for x
    x = 1,235,327,863.79/40,178.02
  6. Step 6: Final answer
    x = 30,746.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.