Home / 26,651.16-39,985.92-11,870.28

Finding the Fourth Proportional to 26,651.16, 39,985.92 and 11,870.28

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Solution

The fourth proportional to 26,651.16, 39,985.92 and 11,870.28 is: 17,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,651.16 : 39,985.92 = 11,870.28 : x
  2. Step 2: Convert to fraction form
    26,651.16/39,985.92 = 11,870.28/x
  3. Step 3: Cross multiply
    26,651.16x = 39,985.92 × 11,870.28
  4. Step 4: Simplify right side
    26,651.16x = 474,644,066.46
  5. Step 5: Solve for x
    x = 474,644,066.46/26,651.16
  6. Step 6: Final answer
    x = 17,809.51

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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.