Home / 40,047.36-55,263.97-21,898.51

Finding the Fourth Proportional to 40,047.36, 55,263.97 and 21,898.51

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Solution

The fourth proportional to 40,047.36, 55,263.97 and 21,898.51 is: 30,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,047.36 : 55,263.97 = 21,898.51 : x
  2. Step 2: Convert to fraction form
    40,047.36/55,263.97 = 21,898.51/x
  3. Step 3: Cross multiply
    40,047.36x = 55,263.97 × 21,898.51
  4. Step 4: Simplify right side
    40,047.36x = 1,210,198,490.19
  5. Step 5: Solve for x
    x = 1,210,198,490.19/40,047.36
  6. Step 6: Final answer
    x = 30,219.18

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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.