Home / 28,301.11-39,055.89-15,555.68

Finding the Fourth Proportional to 28,301.11, 39,055.89 and 15,555.68

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Solution

The fourth proportional to 28,301.11, 39,055.89 and 15,555.68 is: 21,467.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.11 : 39,055.89 = 15,555.68 : x
  2. Step 2: Convert to fraction form
    28,301.11/39,055.89 = 15,555.68/x
  3. Step 3: Cross multiply
    28,301.11x = 39,055.89 × 15,555.68
  4. Step 4: Simplify right side
    28,301.11x = 607,541,024.59
  5. Step 5: Solve for x
    x = 607,541,024.59/28,301.11
  6. Step 6: Final answer
    x = 21,467.04

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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.