Home / 28,407.51-42,619.37-11,545.74

Finding the Fourth Proportional to 28,407.51, 42,619.37 and 11,545.74

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Solution

The fourth proportional to 28,407.51, 42,619.37 and 11,545.74 is: 17,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.51 : 42,619.37 = 11,545.74 : x
  2. Step 2: Convert to fraction form
    28,407.51/42,619.37 = 11,545.74/x
  3. Step 3: Cross multiply
    28,407.51x = 42,619.37 × 11,545.74
  4. Step 4: Simplify right side
    28,407.51x = 492,072,107.26
  5. Step 5: Solve for x
    x = 492,072,107.26/28,407.51
  6. Step 6: Final answer
    x = 17,321.90

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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.