Home / 28,290.17-42,374.51-26,634.03

Finding the Fourth Proportional to 28,290.17, 42,374.51 and 26,634.03

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Solution

The fourth proportional to 28,290.17, 42,374.51 and 26,634.03 is: 39,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.17 : 42,374.51 = 26,634.03 : x
  2. Step 2: Convert to fraction form
    28,290.17/42,374.51 = 26,634.03/x
  3. Step 3: Cross multiply
    28,290.17x = 42,374.51 × 26,634.03
  4. Step 4: Simplify right side
    28,290.17x = 1,128,603,903.99
  5. Step 5: Solve for x
    x = 1,128,603,903.99/28,290.17
  6. Step 6: Final answer
    x = 39,893.85

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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.