Home / 28,060.13-38,722.79-15,484.88

Finding the Fourth Proportional to 28,060.13, 38,722.79 and 15,484.88

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Solution

The fourth proportional to 28,060.13, 38,722.79 and 15,484.88 is: 21,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.13 : 38,722.79 = 15,484.88 : x
  2. Step 2: Convert to fraction form
    28,060.13/38,722.79 = 15,484.88/x
  3. Step 3: Cross multiply
    28,060.13x = 38,722.79 × 15,484.88
  4. Step 4: Simplify right side
    28,060.13x = 599,617,891.93
  5. Step 5: Solve for x
    x = 599,617,891.93/28,060.13
  6. Step 6: Final answer
    x = 21,369.03

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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.