Home / 27,693.18-38,215.26-15,755.40

Finding the Fourth Proportional to 27,693.18, 38,215.26 and 15,755.40

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Solution

The fourth proportional to 27,693.18, 38,215.26 and 15,755.40 is: 21,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,693.18 : 38,215.26 = 15,755.40 : x
  2. Step 2: Convert to fraction form
    27,693.18/38,215.26 = 15,755.40/x
  3. Step 3: Cross multiply
    27,693.18x = 38,215.26 × 15,755.40
  4. Step 4: Simplify right side
    27,693.18x = 602,096,707.40
  5. Step 5: Solve for x
    x = 602,096,707.40/27,693.18
  6. Step 6: Final answer
    x = 21,741.70

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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.