Home / 28,072-38,738.88-15,496.48

Finding the Fourth Proportional to 28,072, 38,738.88 and 15,496.48

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Solution

The fourth proportional to 28,072, 38,738.88 and 15,496.48 is: 21,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072 : 38,738.88 = 15,496.48 : x
  2. Step 2: Convert to fraction form
    28,072/38,738.88 = 15,496.48/x
  3. Step 3: Cross multiply
    28,072x = 38,738.88 × 15,496.48
  4. Step 4: Simplify right side
    28,072x = 600,316,279.14
  5. Step 5: Solve for x
    x = 600,316,279.14/28,072
  6. Step 6: Final answer
    x = 21,384.88

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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.