Home / 27,790.17-38,346.86-15,852.80

Finding the Fourth Proportional to 27,790.17, 38,346.86 and 15,852.80

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Solution

The fourth proportional to 27,790.17, 38,346.86 and 15,852.80 is: 21,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.17 : 38,346.86 = 15,852.80 : x
  2. Step 2: Convert to fraction form
    27,790.17/38,346.86 = 15,852.80/x
  3. Step 3: Cross multiply
    27,790.17x = 38,346.86 × 15,852.80
  4. Step 4: Simplify right side
    27,790.17x = 607,904,831.21
  5. Step 5: Solve for x
    x = 607,904,831.21/27,790.17
  6. Step 6: Final answer
    x = 21,874.82

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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.