Home / 28,137.51-42,193.95-13,350.65

Finding the Fourth Proportional to 28,137.51, 42,193.95 and 13,350.65

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Solution

The fourth proportional to 28,137.51, 42,193.95 and 13,350.65 is: 20,020.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.51 : 42,193.95 = 13,350.65 : x
  2. Step 2: Convert to fraction form
    28,137.51/42,193.95 = 13,350.65/x
  3. Step 3: Cross multiply
    28,137.51x = 42,193.95 × 13,350.65
  4. Step 4: Simplify right side
    28,137.51x = 563,316,447.60
  5. Step 5: Solve for x
    x = 563,316,447.60/28,137.51
  6. Step 6: Final answer
    x = 20,020.12

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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.