Home / 27,381.98-37,787.06-15,445.28

Finding the Fourth Proportional to 27,381.98, 37,787.06 and 15,445.28

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Solution

The fourth proportional to 27,381.98, 37,787.06 and 15,445.28 is: 21,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.98 : 37,787.06 = 15,445.28 : x
  2. Step 2: Convert to fraction form
    27,381.98/37,787.06 = 15,445.28/x
  3. Step 3: Cross multiply
    27,381.98x = 37,787.06 × 15,445.28
  4. Step 4: Simplify right side
    27,381.98x = 583,631,455.92
  5. Step 5: Solve for x
    x = 583,631,455.92/27,381.98
  6. Step 6: Final answer
    x = 21,314.44

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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.