Home / 27,809.98-38,381.14-15,710.97

Finding the Fourth Proportional to 27,809.98, 38,381.14 and 15,710.97

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Solution

The fourth proportional to 27,809.98, 38,381.14 and 15,710.97 is: 21,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.98 : 38,381.14 = 15,710.97 : x
  2. Step 2: Convert to fraction form
    27,809.98/38,381.14 = 15,710.97/x
  3. Step 3: Cross multiply
    27,809.98x = 38,381.14 × 15,710.97
  4. Step 4: Simplify right side
    27,809.98x = 603,004,939.11
  5. Step 5: Solve for x
    x = 603,004,939.11/27,809.98
  6. Step 6: Final answer
    x = 21,683.04

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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.