Home / 28,119.24-38,803.48-16,186.40

Finding the Fourth Proportional to 28,119.24, 38,803.48 and 16,186.40

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Solution

The fourth proportional to 28,119.24, 38,803.48 and 16,186.40 is: 22,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.24 : 38,803.48 = 16,186.40 : x
  2. Step 2: Convert to fraction form
    28,119.24/38,803.48 = 16,186.40/x
  3. Step 3: Cross multiply
    28,119.24x = 38,803.48 × 16,186.40
  4. Step 4: Simplify right side
    28,119.24x = 628,088,648.67
  5. Step 5: Solve for x
    x = 628,088,648.67/28,119.24
  6. Step 6: Final answer
    x = 22,336.62

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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.