Home / 27,630.37-38,130.15-15,693.94

Finding the Fourth Proportional to 27,630.37, 38,130.15 and 15,693.94

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Solution

The fourth proportional to 27,630.37, 38,130.15 and 15,693.94 is: 21,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.37 : 38,130.15 = 15,693.94 : x
  2. Step 2: Convert to fraction form
    27,630.37/38,130.15 = 15,693.94/x
  3. Step 3: Cross multiply
    27,630.37x = 38,130.15 × 15,693.94
  4. Step 4: Simplify right side
    27,630.37x = 598,412,286.29
  5. Step 5: Solve for x
    x = 598,412,286.29/27,630.37
  6. Step 6: Final answer
    x = 21,657.77

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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.