Home / 27,809.02-38,345.70-17,721.49

Finding the Fourth Proportional to 27,809.02, 38,345.70 and 17,721.49

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Solution

The fourth proportional to 27,809.02, 38,345.70 and 17,721.49 is: 24,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.02 : 38,345.70 = 17,721.49 : x
  2. Step 2: Convert to fraction form
    27,809.02/38,345.70 = 17,721.49/x
  3. Step 3: Cross multiply
    27,809.02x = 38,345.70 × 17,721.49
  4. Step 4: Simplify right side
    27,809.02x = 679,542,939.09
  5. Step 5: Solve for x
    x = 679,542,939.09/27,809.02
  6. Step 6: Final answer
    x = 24,436.06

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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.