Home / 40,091-55,325.64-22,187.20

Finding the Fourth Proportional to 40,091, 55,325.64 and 22,187.20

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Solution

The fourth proportional to 40,091, 55,325.64 and 22,187.20 is: 30,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,091 : 55,325.64 = 22,187.20 : x
  2. Step 2: Convert to fraction form
    40,091/55,325.64 = 22,187.20/x
  3. Step 3: Cross multiply
    40,091x = 55,325.64 × 22,187.20
  4. Step 4: Simplify right side
    40,091x = 1,227,521,039.81
  5. Step 5: Solve for x
    x = 1,227,521,039.81/40,091
  6. Step 6: Final answer
    x = 30,618.37

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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.