Home / 27,152.40-37,470.80-15,215.68

Finding the Fourth Proportional to 27,152.40, 37,470.80 and 15,215.68

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Solution

The fourth proportional to 27,152.40, 37,470.80 and 15,215.68 is: 20,997.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,152.40 : 37,470.80 = 15,215.68 : x
  2. Step 2: Convert to fraction form
    27,152.40/37,470.80 = 15,215.68/x
  3. Step 3: Cross multiply
    27,152.40x = 37,470.80 × 15,215.68
  4. Step 4: Simplify right side
    27,152.40x = 570,143,702.14
  5. Step 5: Solve for x
    x = 570,143,702.14/27,152.40
  6. Step 6: Final answer
    x = 20,997.91

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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.