Home / 28,386.15-42,513.57-27,402

Finding the Fourth Proportional to 28,386.15, 42,513.57 and 27,402

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Solution

The fourth proportional to 28,386.15, 42,513.57 and 27,402 is: 41,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.15 : 42,513.57 = 27,402 : x
  2. Step 2: Convert to fraction form
    28,386.15/42,513.57 = 27,402/x
  3. Step 3: Cross multiply
    28,386.15x = 42,513.57 × 27,402
  4. Step 4: Simplify right side
    28,386.15x = 1,164,956,845.14
  5. Step 5: Solve for x
    x = 1,164,956,845.14/28,386.15
  6. Step 6: Final answer
    x = 41,039.62

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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.