Home / 26,929.37-40,403.78-13,787.93

Finding the Fourth Proportional to 26,929.37, 40,403.78 and 13,787.93

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Solution

The fourth proportional to 26,929.37, 40,403.78 and 13,787.93 is: 20,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.37 : 40,403.78 = 13,787.93 : x
  2. Step 2: Convert to fraction form
    26,929.37/40,403.78 = 13,787.93/x
  3. Step 3: Cross multiply
    26,929.37x = 40,403.78 × 13,787.93
  4. Step 4: Simplify right side
    26,929.37x = 557,084,490.38
  5. Step 5: Solve for x
    x = 557,084,490.38/26,929.37
  6. Step 6: Final answer
    x = 20,686.87

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1.5x scale

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.