Home / 28,133.10-38,824.18-16,803.61

Finding the Fourth Proportional to 28,133.10, 38,824.18 and 16,803.61

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Solution

The fourth proportional to 28,133.10, 38,824.18 and 16,803.61 is: 23,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.10 : 38,824.18 = 16,803.61 : x
  2. Step 2: Convert to fraction form
    28,133.10/38,824.18 = 16,803.61/x
  3. Step 3: Cross multiply
    28,133.10x = 38,824.18 × 16,803.61
  4. Step 4: Simplify right side
    28,133.10x = 652,386,240.22
  5. Step 5: Solve for x
    x = 652,386,240.22/28,133.10
  6. Step 6: Final answer
    x = 23,189.28

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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.