Home / 28,364.38-42,495.81-15,869.86

Finding the Fourth Proportional to 28,364.38, 42,495.81 and 15,869.86

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Solution

The fourth proportional to 28,364.38, 42,495.81 and 15,869.86 is: 23,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.38 : 42,495.81 = 15,869.86 : x
  2. Step 2: Convert to fraction form
    28,364.38/42,495.81 = 15,869.86/x
  3. Step 3: Cross multiply
    28,364.38x = 42,495.81 × 15,869.86
  4. Step 4: Simplify right side
    28,364.38x = 674,402,555.29
  5. Step 5: Solve for x
    x = 674,402,555.29/28,364.38
  6. Step 6: Final answer
    x = 23,776.39

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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.