Home / 40,155.05-55,412.47-23,160

Finding the Fourth Proportional to 40,155.05, 55,412.47 and 23,160

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Solution

The fourth proportional to 40,155.05, 55,412.47 and 23,160 is: 31,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.05 : 55,412.47 = 23,160 : x
  2. Step 2: Convert to fraction form
    40,155.05/55,412.47 = 23,160/x
  3. Step 3: Cross multiply
    40,155.05x = 55,412.47 × 23,160
  4. Step 4: Simplify right side
    40,155.05x = 1,283,352,689.40
  5. Step 5: Solve for x
    x = 1,283,352,689.40/40,155.05
  6. Step 6: Final answer
    x = 31,959.94

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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.