Home / 28,119.42-38,803.05-15,544.17

Finding the Fourth Proportional to 28,119.42, 38,803.05 and 15,544.17

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Solution

The fourth proportional to 28,119.42, 38,803.05 and 15,544.17 is: 21,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.42 : 38,803.05 = 15,544.17 : x
  2. Step 2: Convert to fraction form
    28,119.42/38,803.05 = 15,544.17/x
  3. Step 3: Cross multiply
    28,119.42x = 38,803.05 × 15,544.17
  4. Step 4: Simplify right side
    28,119.42x = 603,161,205.72
  5. Step 5: Solve for x
    x = 603,161,205.72/28,119.42
  6. Step 6: Final answer
    x = 21,449.99

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Half scale
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Double scale
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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.