Home / 26,461.76-39,718.56-12,620.48

Finding the Fourth Proportional to 26,461.76, 39,718.56 and 12,620.48

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Solution

The fourth proportional to 26,461.76, 39,718.56 and 12,620.48 is: 18,943.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,461.76 : 39,718.56 = 12,620.48 : x
  2. Step 2: Convert to fraction form
    26,461.76/39,718.56 = 12,620.48/x
  3. Step 3: Cross multiply
    26,461.76x = 39,718.56 × 12,620.48
  4. Step 4: Simplify right side
    26,461.76x = 501,267,292.11
  5. Step 5: Solve for x
    x = 501,267,292.11/26,461.76
  6. Step 6: Final answer
    x = 18,943.08

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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.