Home / 27,727-38,263.21-15,790.34

Finding the Fourth Proportional to 27,727, 38,263.21 and 15,790.34

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Solution

The fourth proportional to 27,727, 38,263.21 and 15,790.34 is: 21,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727 : 38,263.21 = 15,790.34 : x
  2. Step 2: Convert to fraction form
    27,727/38,263.21 = 15,790.34/x
  3. Step 3: Cross multiply
    27,727x = 38,263.21 × 15,790.34
  4. Step 4: Simplify right side
    27,727x = 604,189,095.39
  5. Step 5: Solve for x
    x = 604,189,095.39/27,727
  6. Step 6: Final answer
    x = 21,790.64

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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.