Home / 26,787.99-36,971.99-15,455.44

Finding the Fourth Proportional to 26,787.99, 36,971.99 and 15,455.44

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Solution

The fourth proportional to 26,787.99, 36,971.99 and 15,455.44 is: 21,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,787.99 : 36,971.99 = 15,455.44 : x
  2. Step 2: Convert to fraction form
    26,787.99/36,971.99 = 15,455.44/x
  3. Step 3: Cross multiply
    26,787.99x = 36,971.99 × 15,455.44
  4. Step 4: Simplify right side
    26,787.99x = 571,418,373.13
  5. Step 5: Solve for x
    x = 571,418,373.13/26,787.99
  6. Step 6: Final answer
    x = 21,331.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.