Home / 30,507.29-45,686.42-18,804.41

Finding the Fourth Proportional to 30,507.29, 45,686.42 and 18,804.41

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Solution

The fourth proportional to 30,507.29, 45,686.42 and 18,804.41 is: 28,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,507.29 : 45,686.42 = 18,804.41 : x
  2. Step 2: Convert to fraction form
    30,507.29/45,686.42 = 18,804.41/x
  3. Step 3: Cross multiply
    30,507.29x = 45,686.42 × 18,804.41
  4. Step 4: Simplify right side
    30,507.29x = 859,106,079.09
  5. Step 5: Solve for x
    x = 859,106,079.09/30,507.29
  6. Step 6: Final answer
    x = 28,160.68

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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.