Home / 27,999.18-42,009.66-10,470.36

Finding the Fourth Proportional to 27,999.18, 42,009.66 and 10,470.36

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Solution

The fourth proportional to 27,999.18, 42,009.66 and 10,470.36 is: 15,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.18 : 42,009.66 = 10,470.36 : x
  2. Step 2: Convert to fraction form
    27,999.18/42,009.66 = 10,470.36/x
  3. Step 3: Cross multiply
    27,999.18x = 42,009.66 × 10,470.36
  4. Step 4: Simplify right side
    27,999.18x = 439,856,263.68
  5. Step 5: Solve for x
    x = 439,856,263.68/27,999.18
  6. Step 6: Final answer
    x = 15,709.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.