Home / 27,705.51-38,233.76-15,131.07

Finding the Fourth Proportional to 27,705.51, 38,233.76 and 15,131.07

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Solution

The fourth proportional to 27,705.51, 38,233.76 and 15,131.07 is: 20,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.51 : 38,233.76 = 15,131.07 : x
  2. Step 2: Convert to fraction form
    27,705.51/38,233.76 = 15,131.07/x
  3. Step 3: Cross multiply
    27,705.51x = 38,233.76 × 15,131.07
  4. Step 4: Simplify right side
    27,705.51x = 578,517,623.27
  5. Step 5: Solve for x
    x = 578,517,623.27/27,705.51
  6. Step 6: Final answer
    x = 20,880.96

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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.