Home / 27,620.37-38,116.53-15,045.12

Finding the Fourth Proportional to 27,620.37, 38,116.53 and 15,045.12

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Solution

The fourth proportional to 27,620.37, 38,116.53 and 15,045.12 is: 20,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.37 : 38,116.53 = 15,045.12 : x
  2. Step 2: Convert to fraction form
    27,620.37/38,116.53 = 15,045.12/x
  3. Step 3: Cross multiply
    27,620.37x = 38,116.53 × 15,045.12
  4. Step 4: Simplify right side
    27,620.37x = 573,467,767.83
  5. Step 5: Solve for x
    x = 573,467,767.83/27,620.37
  6. Step 6: Final answer
    x = 20,762.49

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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.